At a glance
A Shopify personalization platform delivering AI-powered upsells, cross-sells, Smart Cart, Bundle Builder, search/collections, and post-purchase offers (Rebuy Monetize). Strong fit with Recharge for subscription upsell flows; Rebuy publicly guarantees positive ROI per its pricing page.
Who it fits
Best forShopify and Shopify Plus stores with diverse SKUs (10+) that want to lift AOV/LTV via cart, checkout, and PDP personalization.
Skip ifSingle-SKU or very small catalog stores (limited upsell value); brands without paid traffic where there's nothing to optimize; teams that won't configure rules/widgets.
Pros & cons
- Smart Cart drives measurable AOV lifts
- Excellent CSM model (Maria, named CSMs widely praised)
- 35+ integrations + no-code/low-code widgets
- Initial setup of widgets can be complex
- Grow plan at $749/mo is steep for small brands
- Some support tickets lag on weekends
Pricing
Starting price
$99/mo
- up to
- —
- Model
- tiered
Pricing source: www.rebuyengine.com/pricing
Features
Smart Cart
AIFully customizable AI-powered slide-out cart with tiered progress bar, GWP, BMSM, switch-to-subscription
- AI kind
- AI product recommendations in cart
- plan
- Cart & Merchandising package
Package-Based Pricing
À la carte packages: Cart & Merchandising, Checkout & Post-Purchase, Search & Collections, Flows & A/B Testing
- plan
- Build-your-plan from $25/mo with usage-based fees by OPM/RGR
Checkout Extensions (Shopify Plus)
Drag-and-drop checkout customization with upsells, reviews, badges
- plan
- Checkout & Post-Purchase package + Shopify Plus required
Post-Purchase Offers
AIOffers between checkout and the Thank You page
- AI kind
- personalized offer selection
- plan
- Checkout & Post-Purchase package
Smart Flows (no-code experiences)
Link-based and site-based experiences that reduce steps to checkout
- plan
- Flows & A/B Testing package
A/B Testing
Native A/B testing on personalization experiences
- plan
- Flows & A/B Testing package
Re-Order Landing Page
Dedicated page to reorder favorites / discover new products / upgrade subscriptions
- plan
- Cart & Merchandising package
Smart Collections
AIAI-driven collection merchandising with sort rules and personalization
- AI kind
- personalized collection ordering
- plan
- Search & Collections package
Smart Search
AIAI search with typo tolerance and personalized results
- AI kind
- search relevance AI
- plan
- Search & Collections package
Rebuy Monetize (Fluent partnership)
Earn revenue by showing partner-brand offers on the Thank You page
- plan
- Free on all plans (incl. legacy)
ROI Guarantee
Money-back guarantee promising positive ROI; refunds available within 60 days
- plan
- All plans
Shopify integration
Yes — deep native Shopify integration; Shopify App Store; Built-for-Shopify; native to Shopify cart, checkout extensions, Shop App, customer account pages
Integrations
Rating breakdown
Ease of use
8.8/10
[I] inferred
Features
9.0/10
[I] inferred
Value
8.3/10
[I] inferred
Support
9.5/10
[I] inferred
External ratings
G2
4.6/5
2 reviews
Shopify App Store
4.7/5
790 reviews
What operators say
“Rebuy has been incredibly easy to use and has not required any major dev work to achieve our cart and merchandising goals.”
Shopify App Store · 2026
“I am a small business owner and we installed Rebuy just over a month ago. The smart cart is fantastic.”
Shopify App Store · 2026
“We have achieved a 5-figure lift in revenue using a combination of the Smart Cart, Checkout Cross-Sell, Post-Purchase upsells.”
Shopify App Store · 2026
Our verdict
The data points to a catalog-store profile: Shopify and Shopify Plus stores with diverse SKUs (10+) where Smart Cart, Bundle Builder, post-purchase offers, and AI Smart Search can meaningfully lift AOV. Rebuy's published ROI guarantee plus operator quotes like "we have achieved a 5-figure lift in revenue using a combination of the Smart Cart, Checkout Cross-Sell, Post-Purchase upsells" (Shopify App Store 2026) are concrete enough to underwrite the platform fee. Two pricing realities matter more than the marketed Free tier. First, the package-based model means choosing among Cart & Merchandising / Checkout & Post-Purchase / Search & Collections / Flows & A/B Testing — each module priced independently and stacked. A brand using all four hits $749 Grow at the modest end and $999+ Enterprise quickly. Second, the Enterprise $999 includes up to $40K Rebuy-Generated Revenue, then +$249 per additional $10K RGR — the marginal cost climbs steeply once the platform is actually working. Model the RGR-based math against the lift you expect before annualising; the ROI guarantee covers downside but not the upsell-bill ceiling. For single-SKU or very small-catalog stores, the upsell surface area doesn't exist and Rebuy is structurally over-built; LimeSpot's flat-rate model on Shopify or Shopify Magic / Sidekick's bundled recommendations fit better at that scale. G2 (4.6 / 2 reviews) is thin third-party signal; Shopify App Store 4.7 / 790 reviews and the named-CSM positive feedback are the load-bearing signal.