At Once Inventory vs Stockroom ‑ Purchase Orders

At Once Inventory and Stockroom ‑ Purchase Orders are evenly matched on rating (5.0★ 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: At Once Inventory at Free trial 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.

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.

Is At Once Inventory or Stockroom ‑ Purchase Orders cheaper?

Both At Once Inventory and Stockroom ‑ Purchase Orders offer paid plans only. At Once Inventory starts at Free trial available; Stockroom ‑ Purchase Orders starts at Free. Compare the per-tier features in the Pricing section above before committing.

Which has better reviews, At Once Inventory or Stockroom ‑ Purchase Orders?

At Once Inventory (5.0★, 1 reviews) and Stockroom ‑ Purchase Orders (4.9★, 47 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.

Should I choose At Once Inventory or Stockroom ‑ Purchase Orders?

At Once Inventory holds the higher average rating (5.0★ vs 4.9★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, At Once Inventory or Stockroom ‑ Purchase Orders?

Both apps are one-click installs from the Shopify App Store. Stockroom ‑ Purchase Orders has the deeper published review base (47 vs 1), 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.

Which works better for small vs large Shopify App Store merchants?

At Once Inventory typically suits early-stage and growth-mode teams based on its published review base (1 reviews). Stockroom ‑ Purchase Orders typically suits early-stage and growth-mode teams based on its published review base (47 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.

Can I migrate data between At Once Inventory and Stockroom ‑ Purchase Orders?

Migration support varies by app and category. At Once Inventory 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 At Once Inventory" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.