Side-by-side comparison · 24 data points
Capture sales with Back in Stock alerts, Preorders, Wishlists & Low Stocks. Trusted since 2011.
| Amp Back in Stock & Preorder + | Stockroom ‑ Purchase Orders | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Unlimited purchase orders, inventory management & manufacturing. Reorders, forecasting & reports.
| Metric | Amp Back in Stock & Preorder + | Stockroom ‑ Purchase Orders |
|---|---|---|
| Rating | 4.9 ★ | 4.9 ★ |
| Total reviews | ★ 939 | 48 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free |
| Built for Shopify | Yes | Yes |
| Pricing tiers | ★ 4 tiers | 1 tier |
| Listed features | 5 | 5 |
| Featured placements | 1 | — |
| Languages | 1 supported | 1 supported |
| Listed since | May 2011 | Jul 2026 |
Amp Back in Stock & Preorder + and Stockroom ‑ Purchase Orders are evenly matched on rating (4.9★ vs 4.9★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
Pricing entry tiers: Amp Back in Stock & Preorder + at Free plan available, Stockroom ‑ Purchase Orders 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.
Amp Back in Stock & Preorder + has the larger user base (939 reviews vs 48), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Stockroom ‑ Purchase Orders's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.
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: Amp Back in Stock & Preorder + audit • Stockroom ‑ Purchase Orders audit
| Keyword | Amp Back in Stock & Preorder + | Stockroom ‑ Purchase Orders |
|---|---|---|
| in stock alerts | #9 | #14 |
| stock alerts | #10 | #15 |
| stock alert | #11 | #15 |
| alerts | #12 | #16 |
| alert | #12 | #19 |
Not featured in any section recently.
Both Amp Back in Stock & Preorder + and Stockroom ‑ Purchase Orders offer paid plans only. Amp Back in Stock & Preorder + starts at Free plan available; Stockroom ‑ Purchase Orders starts at Free. Compare the per-tier features in the Pricing section above before committing.
Amp Back in Stock & Preorder + (4.9★, 939 reviews) and Stockroom ‑ Purchase Orders (4.9★, 48 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
AppRanks cannot separate these two on rating — both sit at 4.9★. Amp Back in Stock & Preorder + does carry the larger published review base (939 vs 48). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Amp Back in Stock & Preorder + has the deeper published review base (939 vs 48), 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.
Amp Back in Stock & Preorder + typically suits early-stage and growth-mode teams based on its published review base (939 reviews). Stockroom ‑ Purchase Orders typically suits early-stage and growth-mode teams based on its published review base (48 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. Amp Back in Stock & Preorder + and Stockroom ‑ Purchase Orders 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 Stockroom ‑ Purchase Orders" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
