Side-by-side comparison · 24 data points
PackOS selects the correct box for every order and returns accurate live carrier rates at checkout.
| PackOS Checkout | Shipping calculator | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Show accurate shipping rates at checkout with advanced shipping rate rules easily
| Metric | PackOS Checkout | Shipping calculator: ShipMagic |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | 1 | ★ 116 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free plan available |
| Built for Shopify | — | — |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 3 | ★ 5 |
| Languages | 1 supported | 1 supported |
| Listed since | May 2026 | Jul 2023 |
PackOS Checkout and Shipping calculator: ShipMagic are evenly matched on rating (5.0★ vs 5.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
Pricing entry tiers: PackOS Checkout at Free trial available, Shipping calculator: ShipMagic 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.
Shipping calculator: ShipMagic has the larger user base (116 reviews vs 1), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. PackOS Checkout'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: PackOS Checkout audit • Shipping calculator: ShipMagic audit
| Keyword | PackOS Checkout | Shipping calculator |
|---|---|---|
| shipping rates rules | Not ranked | #10 |
| shipping rates | Not ranked | #11 |
| custom shipping rates | Not ranked | #14 |
Both PackOS Checkout and Shipping calculator: ShipMagic offer paid plans only. PackOS Checkout starts at Free trial available; Shipping calculator: ShipMagic starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
PackOS Checkout (5.0★, 1 reviews) and Shipping calculator: ShipMagic (5.0★, 116 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 5.0★. Shipping calculator: ShipMagic does carry the larger published review base (116 vs 1). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Shipping calculator: ShipMagic has the deeper published review base (116 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.
PackOS Checkout typically suits early-stage and growth-mode teams based on its published review base (1 reviews). Shipping calculator: ShipMagic typically suits early-stage and growth-mode teams based on its published review base (116 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. PackOS Checkout and Shipping calculator: ShipMagic 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 PackOS Checkout" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
