Shopify app comparison · updated Aug 25, 2026
Aftersell Post Purchase Upsellvs
Rebuy Personalization Engine
Compare Aftersell Post Purchase Upsell and Rebuy Personalization Engine for Shopify upsell and cross-sell using current ratings, review activity, pricing, features, and OngoingAI-observed adoption.
Rokt
Aftersell Post Purchase Upsell
Boost AOV with 1-click post-purchase upsells, checkout upsells, thank you page offers, and more
- Rating
- 4.80
- Reviews
- 900
- Review growth · 30d
- +15 · +1.7%
- Pricing
- Free plan available
- Years on Shopify
- 7
- Stores observed
- 268
Rebuy
Rebuy Personalization Engine
AI-powered product recommendations & search: cart, checkout, post-purchase upsells, and A/B testing
- Rating
- 4.80
- Reviews
- 745
- Review growth · 30d
- +2 · +0.3%
- Pricing
- Free plan available
- Years on Shopify
- 7
- Stores observed
- 2,498
Our read
- Ratings
- Level at 4.80
- Review growth
- Aftersell Post Purchase Upsell faster (+1.7% vs +0.3%)
- Adoption
- Rebuy Personalization Engine larger (2,498 vs 268)
OngoingAI's data favors Rebuy Personalization Engine on observed Shopify adoption (2,498 vs 268 stores).
Head-to-head
The signals, side by side.
Each row reads straight from the live App Store listing and OngoingAI’s census. The Difference column states the gap — not a buyer recommendation.
| Dimension | Aftersell Post Purchase Upsell | Rebuy Personalization Engine | Difference |
|---|---|---|---|
| Rating | 4.80 | 4.80 | Level |
| Reviews | 900 | 745 | Aftersell Post Purchase Upsell 1.2× |
| Review growth · 30d | +15 · +1.7% | +2 · +0.3% | Aftersell Post Purchase Upsell faster |
| Listed pricing | Free plan available | Free plan available | Not directly comparable |
| Years on Shopify | 7 | 7 | Level |
| Stores observed | 268 | 2,498 | Rebuy Personalization Engine leads |
Which fits your requirements?
Choose by what you actually need.
Choose Aftersell Post Purchase Upsell if…
- You need product add-ons
- You need optimization suggestions
- You need funnel performance
- Recent review-growth signals matter to you
Choose Rebuy Personalization Engine if…
- You need cart upsell
- You need product page upsell
- You need cart drawer
- A larger observed Shopify footprint is reassuring
Tied to observable requirements only — listed capabilities, ratings, review growth, adoption and price. It doesn’t assert usability or support quality.
Feature differences
55% of listed capabilities overlap.
These apps cover largely the same ground. The decision material is what each lists that the other doesn’t.
Aftersell Post Purchase Upsell only
4
- Product add-ons
- Optimization suggestions
- Funnel performance
- Checkout - Other
Rebuy Personalization Engine only
18
- Cart upsell
- Product page upsell
- Cart drawer
- Shipping protection
- Gift wrap
- Bundles
- Volume discounts
- Tiered discounts
- Cart customization
- Announcements
- Custom styles
- Discount fields
- Promotions
- Mobile responsive
- Sticky cart
- Terms checkbox
- Countdown timers
- Buy more, save more
Show 22 shared capabilities
- Upsell and cross-sell
- Checkout upsell
- Progress bar
- Thank you page upsell
- One-click add-ons
- Pop-ups
- Custom CSS
- Custom HTML
- Drag-and-drop editor
- Multi-currency
- Multi-language
- Custom rules
- Free gifts
- Free shipping
- Product recommendations
- Frequently bought together
- AI recommendations
- Subscription upgrade
- A/B testing
- Click-through rates
- Conversion rates
- Recommendation performance
Observed adoption
Who actually runs each, on real stores.
The stores OngoingAI’s weekly census observes running each app, and the platform each skews toward — observed presence, not vendor-reported install totals.
Aftersell Post Purchase Upsell
268
stores observed
Skews Shopify · 97%
Rebuy Personalization Engine
2,498
stores observed
Skews Shopify · 100%
Scope
What this comparison measures.
What it measures
Shopify App Store ratings, review counts and 30-day review growth, listed pricing and capabilities, category data, and OngoingAI-observed storefront adoption for Aftersell Post Purchase Upsell and Rebuy Personalization Engine.
What it doesn’t
Hands-on usability, customer-support quality, deliverability, merchant sentiment from review text, or revenue impact. We draw a sharp line around what we can observe.
Still comparing?
Methodology
Where the numbers come from.
Ratings, review counts, pricing, and categories come from the live Shopify App Store listing, refreshed daily. Review growth compares the observed snapshots across the trailing 30-day window. “Stores observed” and the platform split come from OngoingAI’s weekly storefront census — the real stores running each app, not the listing’s claimed totals. Comparison generated Aug 25, 2026.
See who’s switching — as it happens.
Track app adoption on live ecommerce stores. Find merchants running Aftersell Post Purchase Upsell or Rebuy Personalization Engine, follow stack changes, and see when a store installs, removes, or replaces an app.