Side-by-side comparison · 24 data points
Reduce returns and increase sales with clean size charts and AI-powered size recommenders
| Kiwi Size Chart & Recommender | RMS Size Helper | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Help customers find their perfect size with smart size charts and personalized fit recommendations.
| Metric | Kiwi Size Chart & Recommender | RMS Size Helper |
|---|---|---|
| Rating | 4.7 ★ | — |
| Total reviews | 1k | 0 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | — | — |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 5 | 5 |
| Languages | 1 supported | 1 supported |
| Listed since | Mar 2018 | May 2026 |
Based on the data on this page, Kiwi Size Chart & Recommender is the stronger choice for most Shopify App Store merchants — 4.7★ vs RMS Size Helper's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base. Pricing entry tiers: Kiwi Size Chart & Recommender at Free plan available, RMS Size Helper 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 (apps, orders, integrations) varies. Kiwi Size Chart & Recommender has the larger user base (1,038 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. RMS Size Helper's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended by store size: small/early-stage merchants who need fast install and low risk should default to Kiwi Size Chart & Recommender; mid-market and enterprise merchants with specific feature requirements should evaluate both — RMS Size Helper's 0-review base may include the workflow context that matches your specific use case better than Kiwi Size Chart & Recommender'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: Kiwi Size Chart & Recommender audit • RMS Size Helper audit
| Keyword | Kiwi Size Chart & Recommender | RMS Size Helper |
|---|---|---|
| recommendation quizzes | #20 | #190 |
| recommendation quiz | #25 | #190 |
Both Kiwi Size Chart & Recommender and RMS Size Helper offer paid plans only. Kiwi Size Chart & Recommender starts at Free plan available; RMS Size Helper starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
It depends on what you're optimizing for. Kiwi Size Chart & Recommender fits better if you prioritize rating consistency; RMS Size Helper is the call if you need the larger user base. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. Kiwi Size Chart & Recommender has more onboarding documentation maturity (1,038 reviews vs 0), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Kiwi Size Chart & Recommender typically suits early-stage and growth-mode stores based on its review-base composition (1,038 reviews). RMS Size Helper aligns more with early-stage and growth-mode stores (0 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Migration support varies by app and category. Kiwi Size Chart & Recommender and RMS Size Helper 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 RMS Size Helper" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
