Side-by-side comparison · 24 data points
Reduce returns with customizable size charts, size guide & AI size recommender
| MP Size Chart & Size Guide | Key Product Options, Variants | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
Live Preview shows product options, variants, swatches & uploads with B2B Catalog pricing.
| Metric | MP Size Chart & Size Guide | Key Product Options, Variants |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.7 ★ |
| Total reviews | ★ 870 | 30 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free plan available |
| Built for Shopify | Yes | Yes |
| Pricing tiers | ★ 4 tiers | 3 tiers |
| Listed features | 5 | 5 |
| Review velocity (30d) | 5 new | — |
| Languages | 20 supported | 18 supported |
| Listed since | Apr 2020 | Nov 2025 |
MP Size Chart & Size Guide edges out Key Product Options, Variants on rating (5.0★ vs 4.7★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.
Pricing entry tiers: MP Size Chart & Size Guide at Free plan available, Key Product Options, Variants 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.
MP Size Chart & Size Guide has the larger user base (870 reviews vs 30), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Key Product Options, Variants's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to MP Size Chart & Size Guide; mid-market and enterprise merchants with specific feature requirements should evaluate both — Key Product Options, Variants's 30-review base may include the workflow context that matches your specific use case better than MP Size Chart & Size Guide'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: MP Size Chart & Size Guide audit • Key Product Options, Variants audit
| Listed |
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| Last updated | — | — |
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| Keyword | MP Size Chart & Size Guide | Key Product Options, Variants |
|---|---|---|
| variants as | #23 | #20 |
| conditional logic | #24 | #42 |
| sizing | #2 | #116 |
| Signal | MP Size Chart & Size Guide | Key Product Options, Variants |
|---|---|---|
| Average rating | 5.0 ★ (870) | 4.7 ★ (30) |
| Rating distribution | 597% 42% 30% 20% 10% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +0 | — |
| Reviews · last 30 days | +5 | — |
| Reviews · last 90 days | +13 | — |
Both MP Size Chart & Size Guide and Key Product Options, Variants offer paid plans only. MP Size Chart & Size Guide starts at Free plan available; Key Product Options, Variants starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
MP Size Chart & Size Guide has the higher average rating (5.0★ from 870 reviews) compared to Key Product Options, Variants (4.7★ from 30 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
MP Size Chart & Size Guide holds the higher average rating (5.0★ vs 4.7★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. MP Size Chart & Size Guide has the deeper published review base (870 vs 30), 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.
MP Size Chart & Size Guide typically suits early-stage and growth-mode teams based on its published review base (870 reviews). Key Product Options, Variants typically suits early-stage and growth-mode teams based on its published review base (30 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.
The support team was excellent—very responsive, helpful, and quick to make the changes I requested. Great experience overall.
DAVVERO GENTILE VELOCE E CHIARO. MI HA CAPITA SUBITO FONDAMENTALE
Works really smart and we can customize what we want. Great size chart. Haven't tried the AI advice yet.
This is the best size chart I have seen! They were able to customise everything to suit my needs and I saw a big increase in Conversion Rate due to accurate sizing recommendations
No reviews yet.
Migration support varies by app and category. MP Size Chart & Size Guide and Key Product Options, Variants 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 Key Product Options, Variants" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
