Side-by-side comparison · 24 data points
| Shopify Flow | Restock Alerts by MerchaLabs | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Notify shoppers by email the instant a sold-out product restocks — automatic, no manual follow-up.
| Metric | Shopify Flow | Restock Alerts by MerchaLabs |
|---|---|---|
| Rating | 4.7 ★ | — |
| Total reviews | 12k | 0 |
| Free plan | Yes | Yes |
| Pricing | Free | Free plan available |
| Built for Shopify | — | — |
| Pricing tiers | — | 3 tiers |
| Listed features | 3 | 3 |
| Featured placements | 3 | — |
| Review velocity (30d) | 874 new | — |
| Languages | 1 supported | 1 supported |
| Listed since | Sep 2017 | Jun 2026 |
Based on the data on this page, Shopify Flow is the stronger choice for most Shopify App Store merchants — 4.7★ vs Restock Alerts by MerchaLabs's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base. Pricing entry tiers: Shopify Flow at Free, Restock Alerts by MerchaLabs 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 (apps, orders, integrations) varies. Shopify Flow has the larger user base (11,647 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Restock Alerts by MerchaLabs's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to Shopify Flow; mid-market and enterprise merchants with specific feature requirements should evaluate both — Restock Alerts by MerchaLabs's 0-review base may include the workflow context that matches your specific use case better than Shopify Flow'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: Shopify Flow audit • Restock Alerts by MerchaLabs audit
| Keyword | Shopify Flow | Restock Alerts by MerchaLabs |
|---|---|---|
| automation | #1 | Not ranked |
| workflow | #1 | Not ranked |
| workflow automation | #4 | Not ranked |
Not featured in any section recently.
| Signal | Shopify Flow | Restock Alerts by MerchaLabs |
|---|---|---|
| Average rating | 4.7 ★ (12k) | 0.0 ★ (0) |
| Rating distribution | 585% 49% 33% 21% 12% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +180 | — |
| Reviews · last 30 days | +874 | — |
| Reviews · last 90 days | +2.3k | — |
Both Shopify Flow and Restock Alerts by MerchaLabs offer paid plans only. Shopify Flow starts at Free; Restock Alerts by MerchaLabs starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
It depends on what you're optimizing for. Shopify Flow fits better if you prioritize rating consistency; Restock Alerts by MerchaLabs is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. Shopify Flow has more onboarding documentation maturity (11,647 reviews vs 0), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Shopify Flow typically suits established stores with steady traffic based on its review-base composition (11,647 reviews). Restock Alerts by MerchaLabs aligns more with early-stage and growth-mode stores (0 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. Shopify Flow and Restock Alerts by MerchaLabs 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.
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