Side-by-side comparison · 24 data points
Grow sales with pre-order, backorder. Add out of stock waitlists with 'notify me' & restock alerts.
| Preorder, Back in stock Duck | NL Stock Alert | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Notify customers when out-of-stock items return. Recover lost sales with automated alerts
| Metric | Preorder, Back in stock Duck | NL Stock Alert |
|---|---|---|
| Rating | 5.0 ★ | — |
| Total reviews | 514 | 0 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | 4 tiers | — |
| Listed features | 5 | 5 |
| Featured placements | 2 | — |
| Languages | 1 supported | 1 supported |
| Listed since | Mar 2023 | Mar 2026 |
Based on the data on this page, Preorder, Back in stock Duck is the stronger choice for most Shopify App Store merchants — 5.0★ vs NL Stock Alert's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
Pricing entry tiers: Preorder, Back in stock Duck at Free plan available, NL Stock Alert at Free. 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.
Preorder, Back in stock Duck has the larger user base (514 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. NL Stock Alert's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to Preorder, Back in stock Duck; mid-market and enterprise merchants with specific feature requirements should evaluate both — NL Stock Alert's 0-review base may include the workflow context that matches your specific use case better than Preorder, Back in stock Duck'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: Preorder, Back in stock Duck audit • NL Stock Alert audit
| Keyword | Preorder, Back in stock Duck | NL Stock Alert |
|---|---|---|
| sold-out products | #4 | Not ranked |
| notify | #6 | Not ranked |
| preorder | #7 | Not ranked |
| subscription form | Not ranked | #27 |
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No tracked changes.
Both Preorder, Back in stock Duck and NL Stock Alert offer paid plans only. Preorder, Back in stock Duck starts at Free plan available; NL Stock Alert starts at Free. Compare the per-tier features in the Pricing section above before committing.
AppRanks cannot separate these two on rating, because neither publishes one. Preorder, Back in stock Duck does carry the larger published review base (514 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. Preorder, Back in stock Duck has the deeper published review base (514 vs 0), 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.
Preorder, Back in stock Duck typically suits early-stage and growth-mode teams based on its published review base (514 reviews). NL Stock Alert typically suits early-stage and growth-mode teams based on its published review base (0 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. Preorder, Back in stock Duck and NL 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 NL Stock Alert" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
