← Comparisons Klaviyo vs Postscript for Shopify cart recovery
Head-to-head for abandoned cart recovery: timing, channel mix, margin-safe incentives, and Shopify checkout context. Pair test AOVs: $759 and $236.
TL;DR
Top picks at a glance
- Pick A Klaviyo — The default benchmark for Shopify retention data depth.
- Pick B Postscript — SMS-native recovery and campaigns for Shopify DTC.
- Lifecycle layer Sequenzy — Strategy and suppression orchestration first.
| Dimension | Klaviyo | Postscript |
|---|
| Best for | Stores needing deep ecommerce segmentation and proven Shopify-native flows | Brands treating SMS as a revenue channel with compliance guardrails |
| Pricing | Free tier; paid from ~$20/mo | Usage-based |
| Shopify depth | Native | Native |
| Automation | Advanced | Solid |
| Cart channels | email, sms, marketing, cart recovery | sms, marketing, cart recovery |
| Rating | 4.6/5 | 4.7/5 |
Klaviyo vs Postscript: scenario 1 — gift message field abandoned mid-flow. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for no suppression after partial refund. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 2 — high-AOV cart with financing widget opened. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for attribution credit on would-have-returned orders. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 3 — bundle discount not applied in cart. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 3 favors no-discount assist; watch for recovery for fully OOS cart. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 4 — BNPL selected then dropped at review. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 4 favors email proof; watch for duplicate SMS and email within 20 minutes. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 5 — B2B cart below MOQ threshold. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for welcome discount stacking with cart code. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 6 — logged-in repeat buyer with saved address. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for discount on email one before trust proof. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 7 — international shipping quote sticker shock. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 3 favors no-discount assist; watch for SMS after 9pm local without quiet hours. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 8 — subscription toggle left on at checkout. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 4 favors email proof; watch for no suppression after partial refund. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 9 — first-time mobile shopper on Instagram traffic. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for attribution credit on would-have-returned orders. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 10 — size matrix with two variants OOS. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for recovery for fully OOS cart. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 11 — gift message field abandoned mid-flow. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 3 favors no-discount assist; watch for duplicate SMS and email within 20 minutes. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 12 — high-AOV cart with financing widget opened. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 4 favors email proof; watch for welcome discount stacking with cart code. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 13 — bundle discount not applied in cart. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for discount on email one before trust proof. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 14 — BNPL selected then dropped at review. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for SMS after 9pm local without quiet hours. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 15 — B2B cart below MOQ threshold. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 3 favors no-discount assist; watch for no suppression after partial refund. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 16 — logged-in repeat buyer with saved address. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 4 favors email proof; watch for attribution credit on would-have-returned orders. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 17 — international shipping quote sticker shock. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for recovery for fully OOS cart. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 18 — subscription toggle left on at checkout. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for duplicate SMS and email within 20 minutes. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 19 — first-time mobile shopper on Instagram traffic. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 3 favors no-discount assist; watch for welcome discount stacking with cart code. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 20 — size matrix with two variants OOS. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 4 favors email proof; watch for discount on email one before trust proof. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 21 — gift message field abandoned mid-flow. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 1 favors SMS urgency; watch for SMS after 9pm local without quiet hours. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Klaviyo vs Postscript: scenario 22 — high-AOV cart with financing widget opened. At $759 AOV and 38% margin, full-price recovery contributes $288.42 vs $262.46 after a 9% code (Δ $25.96). Ladder touch 2 favors push nudge; watch for no suppression after partial refund. Email 1 ~109m, email 2 ~45h, SMS branch ~4h for opted-in only.
Cart recovery workflow test
$759 cart: email 109m / 45h / SMS 4h. $236 cart: adjust discount cap down 8% max. Exit on purchase; suppress OOS.
Channel escalation
Email carries proof; SMS compresses urgency; never duplicate paragraphs cross-channel. Cap 3 touches per cart per 7 days.
Attribution
Holdout 5%; measure incrementality and contribution margin after discount — platform attribution typically overstated 15–35%.
Who should choose Klaviyo
Klaviyo is the heavyweight when a Shopify store has enough order volume to justify profile-based pricing and wants every product, order, and browse event in one retention database.
Who should choose Postscript
Postscript belongs in the stack when checkout recovery and flash-sale urgency need SMS, not email alone.
Extended recovery research
Cart recovery note 1 (klaviyo-vs-postscript.astro): $658 AOV, 33% margin → $217.14 full-price vs 8% incentive path $199.77 (Δ $17.37). Ladder: email 43m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 2 (klaviyo-vs-postscript.astro): $659 AOV, 34% margin → $224.06 full-price vs 9% incentive path $203.89 (Δ $20.17). Ladder: email 44m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 3 (klaviyo-vs-postscript.astro): $660 AOV, 35% margin → $231.0 full-price vs 10% incentive path $207.9 (Δ $23.1). Ladder: email 45m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 4 (klaviyo-vs-postscript.astro): $661 AOV, 36% margin → $237.96 full-price vs 11% incentive path $211.78 (Δ $26.18). Ladder: email 46m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 5 (klaviyo-vs-postscript.astro): $662 AOV, 37% margin → $244.94 full-price vs 12% incentive path $215.55 (Δ $29.39). Ladder: email 47m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 6 (klaviyo-vs-postscript.astro): $663 AOV, 38% margin → $251.94 full-price vs 13% incentive path $219.19 (Δ $32.75). Ladder: email 48m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 7 (klaviyo-vs-postscript.astro): $664 AOV, 39% margin → $258.96 full-price vs 14% incentive path $222.71 (Δ $36.25). Ladder: email 49m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 8 (klaviyo-vs-postscript.astro): $665 AOV, 40% margin → $266.0 full-price vs 15% incentive path $226.1 (Δ $39.9). Ladder: email 50m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 9 (klaviyo-vs-postscript.astro): $666 AOV, 41% margin → $273.06 full-price vs 16% incentive path $229.37 (Δ $43.69). Ladder: email 51m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 10 (klaviyo-vs-postscript.astro): $667 AOV, 42% margin → $280.14 full-price vs 17% incentive path $232.52 (Δ $47.62). Ladder: email 52m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 11 (klaviyo-vs-postscript.astro): $585 AOV, 68% margin → $397.8 full-price vs 17% incentive path $330.17 (Δ $67.63). Ladder: email 91m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 12 (klaviyo-vs-postscript.astro): $586 AOV, 69% margin → $404.34 full-price vs 18% incentive path $331.56 (Δ $72.78). Ladder: email 92m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 13 (klaviyo-vs-postscript.astro): $587 AOV, 70% margin → $410.9 full-price vs 19% incentive path $332.83 (Δ $78.07). Ladder: email 93m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 14 (klaviyo-vs-postscript.astro): $588 AOV, 71% margin → $417.48 full-price vs 20% incentive path $333.98 (Δ $83.5). Ladder: email 94m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 15 (klaviyo-vs-postscript.astro): $589 AOV, 72% margin → $424.08 full-price vs 8% incentive path $390.15 (Δ $33.93). Ladder: email 95m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 16 (klaviyo-vs-postscript.astro): $590 AOV, 32% margin → $188.8 full-price vs 9% incentive path $171.81 (Δ $16.99). Ladder: email 96m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 17 (klaviyo-vs-postscript.astro): $591 AOV, 33% margin → $195.03 full-price vs 10% incentive path $175.53 (Δ $19.5). Ladder: email 97m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 18 (klaviyo-vs-postscript.astro): $592 AOV, 34% margin → $201.28 full-price vs 11% incentive path $179.14 (Δ $22.14). Ladder: email 98m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 19 (klaviyo-vs-postscript.astro): $593 AOV, 35% margin → $207.55 full-price vs 12% incentive path $182.64 (Δ $24.91). Ladder: email 99m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 20 (klaviyo-vs-postscript.astro): $594 AOV, 36% margin → $213.84 full-price vs 13% incentive path $186.04 (Δ $27.8). Ladder: email 100m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 21 (klaviyo-vs-postscript.astro): $616 AOV, 58% margin → $357.28 full-price vs 9% incentive path $325.12 (Δ $32.16). Ladder: email 31m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 22 (klaviyo-vs-postscript.astro): $617 AOV, 59% margin → $364.03 full-price vs 10% incentive path $327.63 (Δ $36.4). Ladder: email 32m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 23 (klaviyo-vs-postscript.astro): $618 AOV, 60% margin → $370.8 full-price vs 11% incentive path $330.01 (Δ $40.79). Ladder: email 33m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 24 (klaviyo-vs-postscript.astro): $619 AOV, 61% margin → $377.59 full-price vs 12% incentive path $332.28 (Δ $45.31). Ladder: email 34m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 25 (klaviyo-vs-postscript.astro): $620 AOV, 62% margin → $384.4 full-price vs 13% incentive path $334.43 (Δ $49.97). Ladder: email 35m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 26 (klaviyo-vs-postscript.astro): $621 AOV, 63% margin → $391.23 full-price vs 14% incentive path $336.46 (Δ $54.77). Ladder: email 36m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 27 (klaviyo-vs-postscript.astro): $622 AOV, 64% margin → $398.08 full-price vs 15% incentive path $338.37 (Δ $59.71). Ladder: email 37m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 28 (klaviyo-vs-postscript.astro): $623 AOV, 65% margin → $404.95 full-price vs 16% incentive path $340.16 (Δ $64.79). Ladder: email 38m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 29 (klaviyo-vs-postscript.astro): $624 AOV, 66% margin → $411.84 full-price vs 17% incentive path $341.83 (Δ $70.01). Ladder: email 39m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 30 (klaviyo-vs-postscript.astro): $625 AOV, 67% margin → $418.75 full-price vs 18% incentive path $343.38 (Δ $75.37). Ladder: email 40m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 31 (klaviyo-vs-postscript.astro): $647 AOV, 48% margin → $310.56 full-price vs 14% incentive path $267.08 (Δ $43.48). Ladder: email 62m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 32 (klaviyo-vs-postscript.astro): $648 AOV, 49% margin → $317.52 full-price vs 15% incentive path $269.89 (Δ $47.63). Ladder: email 63m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 33 (klaviyo-vs-postscript.astro): $649 AOV, 50% margin → $324.5 full-price vs 16% incentive path $272.58 (Δ $51.92). Ladder: email 64m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 34 (klaviyo-vs-postscript.astro): $650 AOV, 51% margin → $331.5 full-price vs 17% incentive path $275.14 (Δ $56.36). Ladder: email 65m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 35 (klaviyo-vs-postscript.astro): $651 AOV, 52% margin → $338.52 full-price vs 18% incentive path $277.59 (Δ $60.93). Ladder: email 66m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 36 (klaviyo-vs-postscript.astro): $652 AOV, 53% margin → $345.56 full-price vs 19% incentive path $279.9 (Δ $65.66). Ladder: email 67m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 37 (klaviyo-vs-postscript.astro): $653 AOV, 54% margin → $352.62 full-price vs 20% incentive path $282.1 (Δ $70.52). Ladder: email 68m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 38 (klaviyo-vs-postscript.astro): $654 AOV, 55% margin → $359.7 full-price vs 8% incentive path $330.92 (Δ $28.78). Ladder: email 69m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 39 (klaviyo-vs-postscript.astro): $655 AOV, 56% margin → $366.8 full-price vs 9% incentive path $333.79 (Δ $33.01). Ladder: email 70m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 40 (klaviyo-vs-postscript.astro): $656 AOV, 57% margin → $373.92 full-price vs 10% incentive path $336.53 (Δ $37.39). Ladder: email 71m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 41 (klaviyo-vs-postscript.astro): $678 AOV, 38% margin → $257.64 full-price vs 19% incentive path $208.69 (Δ $48.95). Ladder: email 93m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 42 (klaviyo-vs-postscript.astro): $679 AOV, 39% margin → $264.81 full-price vs 20% incentive path $211.85 (Δ $52.96). Ladder: email 94m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 43 (klaviyo-vs-postscript.astro): $680 AOV, 40% margin → $272.0 full-price vs 8% incentive path $250.24 (Δ $21.76). Ladder: email 95m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 44 (klaviyo-vs-postscript.astro): $681 AOV, 41% margin → $279.21 full-price vs 9% incentive path $254.08 (Δ $25.13). Ladder: email 96m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 45 (klaviyo-vs-postscript.astro): $682 AOV, 42% margin → $286.44 full-price vs 10% incentive path $257.8 (Δ $28.64). Ladder: email 97m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 46 (klaviyo-vs-postscript.astro): $683 AOV, 43% margin → $293.69 full-price vs 11% incentive path $261.38 (Δ $32.31). Ladder: email 98m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Cart recovery note 47 (klaviyo-vs-postscript.astro): $684 AOV, 44% margin → $300.96 full-price vs 12% incentive path $264.84 (Δ $36.12). Ladder: email 99m, branch SMS only when TCPA-opted, suppress OOS and recent purchasers within 15 minutes.
Extended recovery research
Deep dive 1 for compare/klaviyo-vs-postscript.astro: mobile distraction. $658 AOV at 33% margin yields $217.14 contribution at full price versus $199.77 after a 8% recovery code (Δ $17.37). Email 1 ~43 minutes, email 2 ~34 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 2 for compare/klaviyo-vs-postscript.astro: BNPL drop. $659 AOV at 34% margin yields $224.06 contribution at full price versus $203.89 after a 9% recovery code (Δ $20.17). Email 1 ~44 minutes, email 2 ~35 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 3 for compare/klaviyo-vs-postscript.astro: OOS variant. $660 AOV at 35% margin yields $231.0 contribution at full price versus $207.9 after a 10% recovery code (Δ $23.1). Email 1 ~45 minutes, email 2 ~36 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 4 for compare/klaviyo-vs-postscript.astro: stacked coupon. $661 AOV at 36% margin yields $237.96 contribution at full price versus $211.78 after a 11% recovery code (Δ $26.18). Email 1 ~46 minutes, email 2 ~37 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 5 for compare/klaviyo-vs-postscript.astro: shipping shock. $662 AOV at 37% margin yields $244.94 contribution at full price versus $215.55 after a 12% recovery code (Δ $29.39). Email 1 ~47 minutes, email 2 ~38 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 6 for compare/klaviyo-vs-postscript.astro: gift sizing. $663 AOV at 38% margin yields $251.94 contribution at full price versus $219.19 after a 13% recovery code (Δ $32.75). Email 1 ~48 minutes, email 2 ~39 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 7 for compare/klaviyo-vs-postscript.astro: MOQ block. $664 AOV at 39% margin yields $258.96 contribution at full price versus $222.71 after a 14% recovery code (Δ $36.25). Email 1 ~49 minutes, email 2 ~40 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 8 for compare/klaviyo-vs-postscript.astro: mobile distraction. $665 AOV at 40% margin yields $266.0 contribution at full price versus $226.1 after a 15% recovery code (Δ $39.9). Email 1 ~50 minutes, email 2 ~41 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 9 for compare/klaviyo-vs-postscript.astro: BNPL drop. $666 AOV at 41% margin yields $273.06 contribution at full price versus $229.37 after a 16% recovery code (Δ $43.69). Email 1 ~51 minutes, email 2 ~42 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 10 for compare/klaviyo-vs-postscript.astro: OOS variant. $667 AOV at 42% margin yields $280.14 contribution at full price versus $232.52 after a 17% recovery code (Δ $47.62). Email 1 ~52 minutes, email 2 ~43 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 11 for compare/klaviyo-vs-postscript.astro: BNPL drop. $585 AOV at 68% margin yields $397.8 contribution at full price versus $330.17 after a 17% recovery code (Δ $67.63). Email 1 ~91 minutes, email 2 ~33 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 12 for compare/klaviyo-vs-postscript.astro: OOS variant. $586 AOV at 69% margin yields $404.34 contribution at full price versus $331.56 after a 18% recovery code (Δ $72.78). Email 1 ~92 minutes, email 2 ~34 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 13 for compare/klaviyo-vs-postscript.astro: stacked coupon. $587 AOV at 70% margin yields $410.9 contribution at full price versus $332.83 after a 19% recovery code (Δ $78.07). Email 1 ~93 minutes, email 2 ~35 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 14 for compare/klaviyo-vs-postscript.astro: shipping shock. $588 AOV at 71% margin yields $417.48 contribution at full price versus $333.98 after a 20% recovery code (Δ $83.5). Email 1 ~94 minutes, email 2 ~36 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 15 for compare/klaviyo-vs-postscript.astro: gift sizing. $589 AOV at 72% margin yields $424.08 contribution at full price versus $390.15 after a 8% recovery code (Δ $33.93). Email 1 ~95 minutes, email 2 ~37 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 16 for compare/klaviyo-vs-postscript.astro: MOQ block. $590 AOV at 32% margin yields $188.8 contribution at full price versus $171.81 after a 9% recovery code (Δ $16.99). Email 1 ~96 minutes, email 2 ~38 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 17 for compare/klaviyo-vs-postscript.astro: mobile distraction. $591 AOV at 33% margin yields $195.03 contribution at full price versus $175.53 after a 10% recovery code (Δ $19.5). Email 1 ~97 minutes, email 2 ~39 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 18 for compare/klaviyo-vs-postscript.astro: BNPL drop. $592 AOV at 34% margin yields $201.28 contribution at full price versus $179.14 after a 11% recovery code (Δ $22.14). Email 1 ~98 minutes, email 2 ~40 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 19 for compare/klaviyo-vs-postscript.astro: OOS variant. $593 AOV at 35% margin yields $207.55 contribution at full price versus $182.64 after a 12% recovery code (Δ $24.91). Email 1 ~99 minutes, email 2 ~41 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 20 for compare/klaviyo-vs-postscript.astro: stacked coupon. $594 AOV at 36% margin yields $213.84 contribution at full price versus $186.04 after a 13% recovery code (Δ $27.8). Email 1 ~100 minutes, email 2 ~42 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 21 for compare/klaviyo-vs-postscript.astro: shipping shock. $616 AOV at 58% margin yields $357.28 contribution at full price versus $325.12 after a 9% recovery code (Δ $32.16). Email 1 ~31 minutes, email 2 ~28 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 22 for compare/klaviyo-vs-postscript.astro: gift sizing. $617 AOV at 59% margin yields $364.03 contribution at full price versus $327.63 after a 10% recovery code (Δ $36.4). Email 1 ~32 minutes, email 2 ~29 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 23 for compare/klaviyo-vs-postscript.astro: MOQ block. $618 AOV at 60% margin yields $370.8 contribution at full price versus $330.01 after a 11% recovery code (Δ $40.79). Email 1 ~33 minutes, email 2 ~30 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 24 for compare/klaviyo-vs-postscript.astro: mobile distraction. $619 AOV at 61% margin yields $377.59 contribution at full price versus $332.28 after a 12% recovery code (Δ $45.31). Email 1 ~34 minutes, email 2 ~31 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 25 for compare/klaviyo-vs-postscript.astro: BNPL drop. $620 AOV at 62% margin yields $384.4 contribution at full price versus $334.43 after a 13% recovery code (Δ $49.97). Email 1 ~35 minutes, email 2 ~32 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 26 for compare/klaviyo-vs-postscript.astro: OOS variant. $621 AOV at 63% margin yields $391.23 contribution at full price versus $336.46 after a 14% recovery code (Δ $54.77). Email 1 ~36 minutes, email 2 ~33 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 27 for compare/klaviyo-vs-postscript.astro: stacked coupon. $622 AOV at 64% margin yields $398.08 contribution at full price versus $338.37 after a 15% recovery code (Δ $59.71). Email 1 ~37 minutes, email 2 ~34 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 28 for compare/klaviyo-vs-postscript.astro: shipping shock. $623 AOV at 65% margin yields $404.95 contribution at full price versus $340.16 after a 16% recovery code (Δ $64.79). Email 1 ~38 minutes, email 2 ~35 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 29 for compare/klaviyo-vs-postscript.astro: gift sizing. $624 AOV at 66% margin yields $411.84 contribution at full price versus $341.83 after a 17% recovery code (Δ $70.01). Email 1 ~39 minutes, email 2 ~36 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 30 for compare/klaviyo-vs-postscript.astro: MOQ block. $625 AOV at 67% margin yields $418.75 contribution at full price versus $343.38 after a 18% recovery code (Δ $75.37). Email 1 ~40 minutes, email 2 ~37 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 31 for compare/klaviyo-vs-postscript.astro: mobile distraction. $647 AOV at 48% margin yields $310.56 contribution at full price versus $267.08 after a 14% recovery code (Δ $43.48). Email 1 ~62 minutes, email 2 ~23 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 32 for compare/klaviyo-vs-postscript.astro: BNPL drop. $648 AOV at 49% margin yields $317.52 contribution at full price versus $269.89 after a 15% recovery code (Δ $47.63). Email 1 ~63 minutes, email 2 ~24 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 33 for compare/klaviyo-vs-postscript.astro: OOS variant. $649 AOV at 50% margin yields $324.5 contribution at full price versus $272.58 after a 16% recovery code (Δ $51.92). Email 1 ~64 minutes, email 2 ~25 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 34 for compare/klaviyo-vs-postscript.astro: stacked coupon. $650 AOV at 51% margin yields $331.5 contribution at full price versus $275.14 after a 17% recovery code (Δ $56.36). Email 1 ~65 minutes, email 2 ~26 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 35 for compare/klaviyo-vs-postscript.astro: shipping shock. $651 AOV at 52% margin yields $338.52 contribution at full price versus $277.59 after a 18% recovery code (Δ $60.93). Email 1 ~66 minutes, email 2 ~27 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 36 for compare/klaviyo-vs-postscript.astro: gift sizing. $652 AOV at 53% margin yields $345.56 contribution at full price versus $279.9 after a 19% recovery code (Δ $65.66). Email 1 ~67 minutes, email 2 ~28 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 37 for compare/klaviyo-vs-postscript.astro: MOQ block. $653 AOV at 54% margin yields $352.62 contribution at full price versus $282.1 after a 20% recovery code (Δ $70.52). Email 1 ~68 minutes, email 2 ~29 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 38 for compare/klaviyo-vs-postscript.astro: mobile distraction. $654 AOV at 55% margin yields $359.7 contribution at full price versus $330.92 after a 8% recovery code (Δ $28.78). Email 1 ~69 minutes, email 2 ~30 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 39 for compare/klaviyo-vs-postscript.astro: BNPL drop. $655 AOV at 56% margin yields $366.8 contribution at full price versus $333.79 after a 9% recovery code (Δ $33.01). Email 1 ~70 minutes, email 2 ~31 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 40 for compare/klaviyo-vs-postscript.astro: OOS variant. $656 AOV at 57% margin yields $373.92 contribution at full price versus $336.53 after a 10% recovery code (Δ $37.39). Email 1 ~71 minutes, email 2 ~32 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 41 for compare/klaviyo-vs-postscript.astro: stacked coupon. $678 AOV at 38% margin yields $257.64 contribution at full price versus $208.69 after a 19% recovery code (Δ $48.95). Email 1 ~93 minutes, email 2 ~18 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 42 for compare/klaviyo-vs-postscript.astro: shipping shock. $679 AOV at 39% margin yields $264.81 contribution at full price versus $211.85 after a 20% recovery code (Δ $52.96). Email 1 ~94 minutes, email 2 ~19 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 43 for compare/klaviyo-vs-postscript.astro: gift sizing. $680 AOV at 40% margin yields $272.0 contribution at full price versus $250.24 after a 8% recovery code (Δ $21.76). Email 1 ~95 minutes, email 2 ~20 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 44 for compare/klaviyo-vs-postscript.astro: MOQ block. $681 AOV at 41% margin yields $279.21 contribution at full price versus $254.08 after a 9% recovery code (Δ $25.13). Email 1 ~96 minutes, email 2 ~21 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 45 for compare/klaviyo-vs-postscript.astro: mobile distraction. $682 AOV at 42% margin yields $286.44 contribution at full price versus $257.8 after a 10% recovery code (Δ $28.64). Email 1 ~97 minutes, email 2 ~22 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 46 for compare/klaviyo-vs-postscript.astro: BNPL drop. $683 AOV at 43% margin yields $293.69 contribution at full price versus $261.38 after a 11% recovery code (Δ $32.31). Email 1 ~98 minutes, email 2 ~23 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 47 for compare/klaviyo-vs-postscript.astro: OOS variant. $684 AOV at 44% margin yields $300.96 contribution at full price versus $264.84 after a 12% recovery code (Δ $36.12). Email 1 ~99 minutes, email 2 ~24 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 48 for compare/klaviyo-vs-postscript.astro: stacked coupon. $685 AOV at 45% margin yields $308.25 contribution at full price versus $268.18 after a 13% recovery code (Δ $40.07). Email 1 ~100 minutes, email 2 ~25 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 49 for compare/klaviyo-vs-postscript.astro: shipping shock. $686 AOV at 46% margin yields $315.56 contribution at full price versus $271.38 after a 14% recovery code (Δ $44.18). Email 1 ~101 minutes, email 2 ~26 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 50 for compare/klaviyo-vs-postscript.astro: gift sizing. $687 AOV at 47% margin yields $322.89 contribution at full price versus $274.46 after a 15% recovery code (Δ $48.43). Email 1 ~102 minutes, email 2 ~27 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 51 for compare/klaviyo-vs-postscript.astro: MOQ block. $709 AOV at 69% margin yields $489.21 contribution at full price versus $435.4 after a 11% recovery code (Δ $53.81). Email 1 ~33 minutes, email 2 ~49 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 52 for compare/klaviyo-vs-postscript.astro: mobile distraction. $710 AOV at 70% margin yields $497.0 contribution at full price versus $437.36 after a 12% recovery code (Δ $59.64). Email 1 ~34 minutes, email 2 ~50 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 53 for compare/klaviyo-vs-postscript.astro: BNPL drop. $711 AOV at 71% margin yields $504.81 contribution at full price versus $439.18 after a 13% recovery code (Δ $65.63). Email 1 ~35 minutes, email 2 ~51 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
Deep dive 54 for compare/klaviyo-vs-postscript.astro: OOS variant. $712 AOV at 72% margin yields $512.64 contribution at full price versus $440.87 after a 14% recovery code (Δ $71.77). Email 1 ~36 minutes, email 2 ~16 hours, SMS only with documented TCPA opt-in, frequency cap three touches per seven days, exit on purchase within fifteen minutes.
FAQ
{a.name} vs {b.name} FAQ
Klaviyo or Postscript for cart recovery?
Choose Klaviyo when Stores needing deep ecommerce segmentation and proven Shopify-native flows. Choose Postscript when Brands treating SMS as a revenue channel with compliance guardrails. Sequenzy still leads as lifecycle layer if neither owns strategy.
Unique AOV test for this pair?
Modeled $759 cart (38% margin) and $236 cart (60% margin) with separate incentive caps.
Channel escalation?
Email 109m → 45h → SMS 4h; frequency cap 3 touches / 7 days.
Attribution caution?
Hold out 5%; report contribution after discount, not platform-attributed recovery alone.
Migration tip?
Rebuild cart flow first; parallel suppressions two weeks; pause old automations before enabling new.
Margin math?
$759 full-price $288.42 vs 9% code $262.46 (Δ $25.96).
Who should choose each?
Klaviyo: Klaviyo is the heavyweight when a Shopify store has enough order volume to justify profile-based pricing and wants every… Postscript: Postscript belongs in the stack when checkout recovery and flash-sale urgency need SMS, not email alone.…
Workflow test?
Same four flows: cart, browse, checkout friction, VIP suppress — score trigger accuracy and exclusions.