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 | Restock Alert WhatsApp | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated |
Notifica por WhatsApp cuando tus productos vuelvan a estar disponibles.
| Metric | Preorder, Back in stock Duck | Restock Alert WhatsApp |
|---|---|---|
| Rating | 5.0 ★ | — |
| Total reviews | 512 | 0 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | ★ 4 tiers | 1 tier |
| Listed features | ★ 5 | 3 |
| Featured placements | 2 | — |
| Languages | 1 supported | 2 supported |
| Listed since | Mar 2023 | Jun 2025 |
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 Restock Alert WhatsApp'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, Restock Alert WhatsApp 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.
Preorder, Back in stock Duck has the larger user base (512 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Restock Alert WhatsApp'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 — Restock Alert WhatsApp'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 • Restock Alert WhatsApp audit
| — |
| Keyword | Preorder, Back in stock Duck | Restock Alert WhatsApp |
|---|---|---|
| sold-out products | #4 | Not ranked |
| notify | #6 | Not ranked |
| preorder | #7 | Not ranked |
Not featured in any section recently.
No tracked changes.
Both Preorder, Back in stock Duck and Restock Alert WhatsApp offer paid plans only. Preorder, Back in stock Duck starts at Free plan available; Restock Alert WhatsApp starts at Free plan available. 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 (512 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 (512 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 (512 reviews). Restock Alert WhatsApp 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 Restock Alert WhatsApp 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 Alert WhatsApp" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
