Sizing Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top sizing Shopify apps with live rankings, market share, geography, and review data — updated weekly from the Shopify App Store. This keyword page shows where each app stands today and how its position has shifted over time.
Top Sizing Shopify Apps Ranked Today
Top 10 sizing Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 Smart Size Chart & Fit Finder | 1 4 | 23.99% 21.55 | 144 5 |
 MP Size Chart & Size Guide | 2 1 | 31.07% 16.51 | 875 5 |
 Jotly Size Chart & Size Guide | 3 1 | 5.42% 0.33 | 73 5 |
 Pify Size Charts & Size Guides | 4 1 | 2.63% 0.42 | 39 3 |
 Kiwi Size Chart & Recommender | 5 1 | 26.00% 1.62 | 1,212 27 |
 ScaleChart: Size Chart & Guide | 6 | 2.21% 1.25 | 38 16 |
 BF Size Chart & Size Guide | 7 | 0.23% 0.00 | 140 0 |
 AI Frame ‑ Try On & Size Chart | 8 2 | 0.32% 0.24 | 14 2 |
 AI Fit Finder Size Recommender | 9 | 0.14% 0.02 | 22 1 |
 CSC: Size Chart & Size Guide | 10 1 | 0.03% 0.02 | 95 2 |
Key Insights:
- Smart Size Chart & Fit Finder commands 24.0% market share, -7.1pp ahead of MP Size Chart & Size Guide — a competitive sizing category.
- In the last 30 days, 3 apps climbed and 4 dropped in ranking among the top 10 tracked sizing apps.
- Kiwi Size Chart & Recommender added the most new reviews this month (+27) — strong adoption momentum.
- Note: MP Size Chart & Size Guide holds higher market share (31.1%) than the rank-#1 app Smart Size Chart & Fit Finder — share and App Store rank don't align in this category, so cross-checking both views matters.
Live Ranking and Market Share Trends for Sizing Shopify Apps
Monthly ranking and market share trends for the top 5 sizing Shopify apps over the past year — see how each app's App Store position and market share have shifted month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Smart Size Chart & Fit Finder | #3 | #3 | #21 | #2 | #11 | #1 |
| MP Size Chart & Size Guide | #2 | #11 | #1 | #32 | #21 | #2 |
| Jotly Size Chart & Size Guide | #51 | #5 | #41 | #4 | #31 | #3 |
| Pify Size Charts & Size Guides | #42 | #4 | #31 | #52 | #41 | #4 |
| Kiwi Size Chart & Recommender | #1 | #21 | #11 | #1 | #54 | #5 |
Key Insights:
- Smart Size Chart & Fit Finder's ranking improved from #2 to #1 over the charted period.
- 3 of 5 top sizing apps improved their position; 2 declined — a mixed picture.
- Smart Size Chart & Fit Finder's market share is 24.0% — gaining +18.0pp since the start of the chart.
Sizing Shopify Apps — Market Share by Country
Top 5 countries driving installs for sizing Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 27.3% | 0.71 |
 Netherlands | 11.4% | 0.42 |
 United Kingdom | 9.0% | 1.59 |
 Australia | 7.1% | 1.44 |
 India | 6.7% | 0.18 |
Key Insights:
- United States accounts for 27.3% of sizing app installs — the single largest market.
- Top 3 markets (United States, Netherlands, United Kingdom) collectively cover 47.7% of all tracked sizing installs — moderately concentrated demand.
- United Kingdom is the fastest-growing market this month (+1.6pp) — emerging demand worth watching.
Fastest to 1,000 Reviews — Sizing Shopify Apps
Race-style view of how the top 5 sizing Shopify apps reached 1,000 reviews — months since launch on the X-axis, cumulative review count on the Y-axis.
Charts Data
| App | Months to Reach 1,000 Reviews | Current Review Count |
|---|---|---|
| Kiwi Size Chart & Recommender | 90 | 1,118 |
| MP Size Chart & Size Guide | Not yet reached | 821 |
| Smart Size Chart & Fit Finder | Not yet reached | 133 |
| Jotly Size Chart & Size Guide | Not yet reached | 66 |
| Pify Size Charts & Size Guides | Not yet reached | 35 |
Key Insights:
- Kiwi Size Chart & Recommender reached 1,000 reviews fastest — in 90 months since launch.
- 4 of the top 5 sizing apps haven't yet crossed 1,000 reviews — MP Size Chart & Size Guide is closest at 821 cumulative.
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Top Sizing Shopify Apps Ranked by Position
Smart Size Chart & Fit Finder holds the top spot for sizing with 24.0% market share, but the gap to challengers is closing, -7.1pp ahead of MP Size Chart & Size Guide (31.1%). Jotly Size Chart & Size Guide sits at #3 with 5.4% share, rounding out the top tier. The top 3 apps together control 60.5% of sizing installs — a clear leadership tier with a meaningful long tail behind them. Smart Size Chart & Fit Finder is the standout mover this month, climbing 4 positions — a momentum signal worth tracking. Worth noting: the top-ranked app and the highest-share app aren't the same here — App Store rank and our market share metric (computed from review counts and other factors) move on independent dynamics, so cross-checking both views matters in this category.
Smart Size Chart & Fit Finder (24.0%) and MP Size Chart & Size Guide (31.1%) sit close at the top of sizing apps, and Smart Size Chart & Fit Finder climbed 4 positions this month. Current rank is a thin signal in this kind of mover-heavy category — recent climbers often have stronger 6-month trajectory than today's leader.
Live Ranking and Market Share Trends Across Sizing Shopify Apps
Smart Size Chart & Fit Finder climbed from #2 (Sep 2025) to #1 (Sep 2026) — a 1-position gain among sizing apps over the charted window. Across the top 5 plotted sizing apps, 3 improved their ranking while 2 declined — the category is moving upward overall. Smart Size Chart & Fit Finder's share held near 24.0% from Sep 2025 to Sep 2026 — a stable install base for sizing apps rather than active gain or loss.
5 of 5 plotted sizing apps moved positions in this window — recent trajectory beats current rank as a signal when a category is reshuffling this actively.
Review Growth Velocity in Sizing — Which Apps Grew Fastest
Kiwi Size Chart & Recommender is the only app in this set to have crossed 1,000 reviews, reaching the milestone in 90 months since launch. The remaining 4 sizing apps tracked here are still building toward 1,000 — current cumulative review counts give the clearest picture of where each one stands today.
4 apps on this chart haven't yet crossed 1,000 reviews: MP Size Chart & Size Guide at 821, Smart Size Chart & Fit Finder at 133, Jotly Size Chart & Size Guide at 66, Pify Size Charts & Size Guides at 35 cumulative reviews. MP Size Chart & Size Guide is closest to the milestone — its current count puts it roughly 82% of the way to 1,000.
Kiwi Size Chart & Recommender is the only app in this set to have crossed 1,000 reviews so far — a useful signal for merchants that one app has already proved sustained adoption while the others remain in the "promising but unproven" tier of the sizing category.
Top 5 Apps in Sizing
- Smart Size Chart & Fit Finder — Tops the sizing rankings with 24.0% market share and 5.0★.
- MP Size Chart & Size Guide — Currently ranked #2 with 31.1% market share and 5.0★.
- Jotly Size Chart & Size Guide — Currently ranked #3 with 5.4% market share and 5.0★.
- Pify Size Charts & Size Guides — Currently ranked #4 with 2.6% market share and 5.0★.
- Kiwi Size Chart & Recommender — Currently ranked #5 with 26.0% market share and 4.8★.
Sizing Shopify Apps — Frequently Asked Questions
1. What is the best sizing app on Shopify?
Smart Size Chart & Fit Finder ranks #1 for sizing apps with 24.0% market share, but the category is competitive — MP Size Chart & Size Guide is close behind at 31.1%, so the best fit depends on your store's specific needs.
2. Which sizing app has the highest market share on Shopify?
Smart Size Chart & Fit Finder holds the highest market share among sizing apps at 24.0% (+21.55pp vs 30 days ago). Market share here is estimated from each app's recent review velocity, with rank-weighted adjustment because positions in keyword search drive most installs.
3. How many sizing apps are tracked on Shopify?
ShopDigest tracks 96 sizing apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which sizing app is growing the fastest on Shopify?
Smart Size Chart & Fit Finder has shown the strongest ranking momentum, climbing 4 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are sizing apps most popular on Shopify?
United States has the highest concentration of sizing app installs at 27.3%, followed by Netherlands at 11.4%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for sizing on Shopify keyword pages?
For keyword pages, market share is rank-weighted — apps at position #1 carry roughly 40× the weight of apps at position #22, and apps beyond #22 are excluded. This reflects the reality that Shopify keyword search traffic concentrates heavily at the top of results.
7. Which sizing app reached 1,000 reviews fastest on Shopify?
Kiwi Size Chart & Recommender hit 1,000 reviews in 90 months since launch — the fastest review ramp among tracked sizing Shopify apps. See the Review Champions chart above for the full race.
