Side-by-side comparison · 24 data points
Don’t miss a sale - send back in stock notifications and price drop alerts that drive action!
| FAST Alerts | Kindly | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated |
| Metric | FAST Alerts: Back in Stock | Kindly: Payment Reminder Pro |
|---|---|---|
| Rating | 4.8 ★ | ★ 5.0 ★ |
| Total reviews | 9 | ★ 31 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free trial available |
| Built for Shopify | — | — |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 5 | 5 |
| Languages | 1 supported | 3 supported |
| Listed since | Jan 2022 | Aug 2020 |
Kindly: Payment Reminder Pro edges out FAST Alerts: Back in Stock on rating (5.0★ vs 4.8★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.
Pricing entry tiers: FAST Alerts: Back in Stock at Free plan available, Kindly: Payment Reminder Pro at Free trial 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 Kindly: Payment Reminder Pro; mid-market and enterprise merchants with specific feature requirements should evaluate both — FAST Alerts: Back in Stock's 9-review base may include the workflow context that matches your specific use case better than Kindly: Payment Reminder Pro'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: FAST Alerts: Back in Stock audit • Kindly: Payment Reminder Pro audit
| — |
| Keyword | FAST Alerts | Kindly |
|---|---|---|
| #75120 | #195 |
No tracked changes.
Both FAST Alerts: Back in Stock and Kindly: Payment Reminder Pro offer paid plans only. FAST Alerts: Back in Stock starts at Free plan available; Kindly: Payment Reminder Pro starts at Free trial available. Compare the per-tier features in the Pricing section above before committing.
Kindly: Payment Reminder Pro has the higher average rating (5.0★ from 31 reviews) compared to FAST Alerts: Back in Stock (4.8★ from 9 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Kindly: Payment Reminder Pro holds the higher average rating (5.0★ vs 4.8★). 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. Kindly: Payment Reminder Pro has the deeper published review base (31 vs 9), 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.
FAST Alerts: Back in Stock typically suits early-stage and growth-mode teams based on its published review base (9 reviews). Kindly: Payment Reminder Pro typically suits early-stage and growth-mode teams based on its published review base (31 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. FAST Alerts: Back in Stock and Kindly: Payment Reminder Pro 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 FAST Alerts: Back in Stock" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
