Side-by-side comparison · 24 data points
Customer can easily be notified when the product back in stock.
| Quick Stock Notifier ‑ Instock | XFlow Back in Stock Alert | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
Automate back in stock alerts and send unlimited emails with personalization to recover lost sales
| Metric | Quick Stock Notifier ‑ Instock | XFlow Back in Stock Alert |
|---|---|---|
| Rating | 3.0 ★ | ★ 5.0 ★ |
| Total reviews | 4 | ★ 60 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | ★ 3 tiers | 2 tiers |
| Listed features | 3 | ★ 5 |
| Featured placements | — | 1 |
| Languages | 1 supported | 5 supported |
| Listed since | Aug 2020 | Dec 2025 |
Based on the data on this page, XFlow Back in Stock Alert is the stronger choice for most Shopify App Store merchants — 5.0★ vs Quick Stock Notifier ‑ Instock's 3.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
Pricing entry tiers: Quick Stock Notifier ‑ Instock at Free trial available, XFlow Back in Stock Alert at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to XFlow Back in Stock Alert; mid-market and enterprise merchants with specific feature requirements should evaluate both — Quick Stock Notifier ‑ Instock's 4-review base may include the workflow context that matches your specific use case better than XFlow Back in Stock Alert's broader-but-shallower coverage.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Quick Stock Notifier ‑ Instock audit • XFlow Back in Stock Alert audit
| Last updated | — | — |
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| Keyword | Quick Stock Notifier ‑ Instock | XFlow Back in Stock Alert |
|---|---|---|
| send unlimited | Not ranked | #2 |
| lost | Not ranked | #3 |
| back in stock alerts | Not ranked | #5 |
Not featured in any section recently.
No tracked changes.
Both Quick Stock Notifier ‑ Instock and XFlow Back in Stock Alert offer paid plans only. Quick Stock Notifier ‑ Instock starts at Free trial available; XFlow Back in Stock Alert starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
XFlow Back in Stock Alert has the higher average rating (5.0★ from 60 reviews) compared to Quick Stock Notifier ‑ Instock (3.0★ from 4 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
XFlow Back in Stock Alert holds the higher average rating (5.0★ vs 3.0★). 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. XFlow Back in Stock Alert has the deeper published review base (60 vs 4), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.
Quick Stock Notifier ‑ Instock typically suits early-stage and growth-mode teams based on its published review base (4 reviews). XFlow Back in Stock Alert typically suits early-stage and growth-mode teams based on its published review base (60 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Quick Stock Notifier ‑ Instock and XFlow Back in Stock Alert 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 Quick Stock Notifier ‑ Instock" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
