Side-by-side comparison
AI-powered product recommendations & search: cart, checkout, post-purchase upsells, and A/B testing
| Metric | Rebuy Personalization Engine | Stackable |
|---|---|---|
| Rating | 4.7 ★ | ★ 4.8 ★ |
| Total reviews | ★ 852 | 55 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | ★ 3 tiers | 2 tiers |
| Listed features | 5 |
On the measured data here, Rebuy Personalization Engine leads on more dimensions (2 vs 0). Pick Stackable if one of the points where it leads is what you need.
Built only from the Shopify App Store listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: Rebuy Personalization Engine audit • Stackable audit
| Field | Rebuy Personalization Engine | Stackable |
|---|---|---|
| Tagline | ||
| Listing audit | 55/100 listing audit | 80/100 listing audit |
| Screenshots | images | images |
| Languages | — | |
| Platforms | ||
| Developer |
| 3 |
| Languages | — | 1 supported |
|---|
| Listed since | — | Oct 2020 |
|---|
| Listed | — |
|---|
None
| Keyword | Rebuy Personalization Engine | Stackable |
|---|---|---|
| engraving and mockup personalizer | #3 | Not ranked |
| grow faster | #5 | Not ranked |
| cart checkout | #9 | Not ranked |
| trackable qr codes | Not ranked | #17 |
| shipping discounts | Not ranked | #21 |
Neither Rebuy Personalization Engine nor Stackable lists a free plan. Rebuy Personalization Engine lists no paid plan with a published price; Stackable lists no paid plan with a published price. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
Rebuy Personalization Engine (4.7★, 852 reviews) and Stackable (4.8★, 55 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
Stackable holds the higher average rating (4.8★ vs 4.7★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. AppRanks doesn't measure setup time directly; Rebuy Personalization Engine has more published reviews to read for user-reported install experience (852 vs 55).
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the Shopify App Store data. What it can show: Rebuy Personalization Engine has 852 published reviews; Stackable has 55 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. Rebuy Personalization Engine and Stackable both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Stackable" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.