Side-by-side comparison
Notify shoppers by email the instant a sold-out product restocks — automatic, no manual follow-up.
Win back sales from your sold-outs: back in stock alerts, advanced restock insights & sales tracking
| Metric | Restock Alerts by MerchaLabs | XFlow Back in Stock Alerts |
|---|---|---|
| Rating | — | 5.0 ★ |
| Total reviews | 0 | 70 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 3 tiers | 3 tiers |
| Listed features | 3 | 5 |
On the measured data here, XFlow Back in Stock Alerts leads on more dimensions (4 vs 1). Pick Restock Alerts by MerchaLabs 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: Restock Alerts by MerchaLabs audit • XFlow Back in Stock Alerts audit
| Field | Restock Alerts by MerchaLabs | XFlow Back in Stock Alerts |
|---|---|---|
| Tagline | ||
| Listing audit | 80/100 listing audit | 93/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| Languages | 1 supported | 5 supported |
|---|
| Listed since | Jun 2026 | Dec 2025 |
|---|
| Listed |
|---|
None
| Keyword | Restock Alerts by MerchaLabs | XFlow Back in Stock Alerts |
|---|---|---|
| send unlimited | Not ranked | #2 |
| lost | Not ranked | #3 |
| back in stock alerts | Not ranked | #5 |
Both Restock Alerts by MerchaLabs and XFlow Back in Stock Alerts offer a free plan. Restock Alerts by MerchaLabs lists no paid plan with a published price; XFlow Back in Stock Alerts 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.
AppRanks cannot separate these two on rating, because neither publishes one. XFlow Back in Stock Alerts does carry the larger published review base (70 vs 0). 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; XFlow Back in Stock Alerts has more published reviews to read for user-reported install experience (70 vs 0).
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: Restock Alerts by MerchaLabs has 0 published reviews; XFlow Back in Stock Alerts has 70 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. Restock Alerts by MerchaLabs and XFlow Back in Stock Alerts 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 Restock Alerts by MerchaLabs" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.