Shopify app comparison · updated Sep 27, 2026
LimeSpot vs Rebuy Personalization Engine
Compare LimeSpot and Rebuy Personalization Engine for Shopify upsell and cross-sell using current ratings, review activity, pricing, features, and OngoingAI-observed adoption.
LimeSpot
LimeSpot AI Bundles & Upsells
One click upsell and cross sell. Display frequently bought together product upsell & bundles.
- Rating
- 4.60
- Reviews
- 507
- Review growth · 30d
- +117 · +30.0%
- Pricing
- Free plan available
- Years on Shopify
- 11
- Stores observed
- 434
Rebuy
Rebuy Personalization Engine
AI-powered product recommendations & search: cart, checkout, post-purchase upsells, and A/B testing
- Rating
- 4.70
- Reviews
- 852
- Review growth · 30d
- +104 · +13.9%
- Pricing
- Free plan available
- Years on Shopify
- 7
- Stores observed
- 3,990
Our read
Rebuy Personalization Engine has the stronger observed market footprint in OngoingAI's data — it appears on 9.2× more tracked stores and carries 1.7× the App Store review depth. Ratings and recent review growth are closer.
- Rating
- Rebuy Personalization Engine leads slightly4.7 vs 4.6
- Review growth
- LimeSpot faster+30.0% vs +13.9%
- Review depth
- Rebuy Personalization Engine1.7× more reviews
- Observed adoption
- Rebuy Personalization Engine9.2× more tracked stores
Review trajectory
How each app's Shopify reviews are moving.
Daily App Store review counts since we began tracking — who's gaining reviews fastest, who holds the larger base, and how the race is developing.
Rebuy Personalization Engine leads total reviews; both are growing at a similar pace.
Reviews each app has gained since the start of this tracking window. · Tracking window · Aug 29 – Sep 26, 2026
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 | LimeSpot | Rebuy Personalization Engine | Difference |
|---|---|---|---|
| Rating | 4.60 | 4.70 | Rebuy Personalization Engine +0.10 |
| Reviews | 507 | 852 | Rebuy Personalization Engine 1.7× |
| Review growth · 30d | +117 · +30.0% | +104 · +13.9% | LimeSpot faster |
| Listed pricing | Free plan available | Free plan available | Not directly comparable |
| Years on Shopify | 11 | 7 | LimeSpot +4y |
| Stores observed | 434 | 3,990 | Rebuy Personalization Engine leads |
Review corpus
What merchants actually report.
LimeSpot
4.76 avg · 391 reviews
Rebuy Personalization Engine
4.86 avg · 753 reviews
| Signal | LimeSpot | Rebuy Personalization Engine | Difference |
|---|---|---|---|
| 5-star share | 91% | 95% | Rebuy Personalization Engine leads |
| Rating · last 90 days | 3.00 | 4.86 | Rebuy Personalization Engine leads |
| Replies to reviews | 28% | 88% | Rebuy Personalization Engine leads |
| Replies to critical (≤3★) | 61% | 93% | Rebuy Personalization Engine leads |
| Long-term reviewers (1yr+) | 20% | 28% | Rebuy Personalization Engine leads |
| Top market | United States 48% | United States 72% | — |
| Reviews analyzed | 391 | 753 | — |
Based on public merchant reviews, with newer feedback given more weight. OngoingAI matches each review to an identifiable store and the app they use.
Which fits your requirements?
Choose by what you actually need.
Choose LimeSpot if…
- You need announcement bar
- You need product add-ons
- You need optimization suggestions
- Recent review-growth signals matter to you
Choose Rebuy Personalization Engine if…
- You need multi-language
- You need shipping protection
- You need free gifts
- A higher App Store rating is a priority
Tied to observable requirements only — listed capabilities, ratings, review growth, adoption and price. It doesn’t assert usability or support quality.
Feature differences
What LimeSpot and Rebuy Personalization Engine each do that the other doesn’t.
They cover largely the same ground — 65% of listed capabilities overlap. The decision material is the rest: what each lists that the other doesn’t.
LimeSpot only
14
- Announcement bar
- Product add-ons
- Optimization suggestions
- Funnel performance
- Product bundles
- Fixed bundles
- Subscription boxes
- Wholesale bundles
- Upsell bundles
- Cross-sell bundles
- Related products
- Digital products
- Custom bundles
- Tiered pricing
Rebuy Personalization Engine only
14
- Multi-language
- Shipping protection
- Free gifts
- Gift wrap
- Cart customization
- Announcements
- Custom styles
- Discount fields
- Promotions
- Mobile responsive
- Sticky cart
- Terms checkbox
- Countdown timers
- Buy more, save more
26 shared capabilities
- Upsell and cross-sell
- Cart upsell
- Checkout upsell
- Product page upsell
- Progress bar
- Thank you page upsell
- One-click add-ons
- Cart drawer
- Pop-ups
- Custom CSS
- Custom HTML
- Drag-and-drop editor
- Multi-currency
- Custom rules
- Free shipping
- Product recommendations
- Frequently bought together
- Bundles
- Volume discounts
- Tiered discounts
- 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.
LimeSpot
434
stores observed
Skews Shopify · 94%
Rebuy Personalization Engine
3,990
stores observed
Skews Shopify · 100%
Scope
What this comparison measures.
What it measures
Shopify App Store ratings and review counts, rating distribution, developer reply rates, reviewer tenure and geography, listed pricing and capabilities, category data, and OngoingAI-observed storefront adoption for LimeSpot 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.
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 Sep 27, 2026.
See who’s switching — as it happens.
Track app adoption on live ecommerce stores. Find merchants running LimeSpot or Rebuy Personalization Engine, follow stack changes, and see when a store installs, removes, or replaces an app.