Side-by-side comparison · 24 data points
Increase conversion, reduce returns and eliminate missed sales, all from one integration.
| Faslet Size & Fit | Sizekick | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
| Metric | Faslet Size & Fit | Sizekick: AI Size Advisor |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | ★ 15 | 4 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free trial available |
| Built for Shopify | — | — |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 5 | 5 |
| Languages | 7 supported | 1 supported |
| Listed since | May 2022 | Dec 2025 |
Faslet Size & Fit and Sizekick: AI Size Advisor 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: Faslet Size & Fit at Free trial available, Sizekick: AI Size Advisor at Free trial 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.
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: Faslet Size & Fit audit • Sizekick: AI Size Advisor audit
| Last updated | — | — |
|---|
| Keyword | Faslet Size & Fit | Sizekick |
|---|---|---|
| size recommender | #18 | #23 |
| size recommendations | #19 | #24 |
| sizing | #28 | #69 |
No tracked changes.
Both Faslet Size & Fit and Sizekick: AI Size Advisor offer paid plans only. Faslet Size & Fit starts at Free trial available; Sizekick: AI Size Advisor starts at Free trial available. Compare the per-tier features in the Pricing section above before committing.
Faslet Size & Fit (5.0★, 15 reviews) and Sizekick: AI Size Advisor (5.0★, 4 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★. Faslet Size & Fit does carry the larger published review base (15 vs 4). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Faslet Size & Fit has the deeper published review base (15 vs 4), 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.
Faslet Size & Fit typically suits early-stage and growth-mode teams based on its published review base (15 reviews). Sizekick: AI Size Advisor typically suits early-stage and growth-mode teams based on its published review base (4 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. Faslet Size & Fit and Sizekick: AI Size Advisor 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 Sizekick: AI Size Advisor" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
