Apps tracked
Category leader
MP Size Chart & Size GuideTop region
Top Unit Conversion Shopify Apps Ranked Today
Top 10 unit conversion Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market share | Reviews |
|---|---|---|---|
| MP Size Chart & Size Guide | 11 | 42.09%9.15 | 8796 |
 Jotly Size Chart & Size Guide | 21 | 9.99%6.14 | 772 |
 Smart Size Chart & Size Guide | 3– | 9.24%0.37 | 1455 |
 AI Frame: Size Chart & Try On | 41 | 4.62%2.78 | 2812 |
 Kiwi Size Chart & Recommender | 51 | 30.08%6.93 | 1,24432 |
 Icona: AI Virtual Try On | 6– | 1.36%0.04 | 271 |
 ScaleChart: Size Chart & Guide | 7– | 1.90%0.36 | 488 |
 AI Fit Finder Size Recommender | 82 | 0.27%0.20 | 233 |
 PDF to Order by LevelOps | 9 | 0.20%0.20 | 211 |
 BF Size Chart & Size Guide | 102 | 0.07%0.07 | 1401 |
Key Insights:
- MP Size Chart & Size Guide commands 42.1% market share, 32.1pp ahead of Jotly Size Chart & Size Guide — a concentrated unit conversion category.
- In the last 30 days, 3 apps climbed and 3 dropped in ranking among the top 10 tracked unit conversion apps.
- Kiwi Size Chart & Recommender added the most new reviews this month (+32) — strong adoption momentum.
Live Ranking and Market Share Trends for Unit Conversion Shopify Apps
Monthly ranking and market share trends for the top 5 unit conversion 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 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| MP Size Chart & Size Guide | #1– | #1– | #32 | #21 | #2– | #11 |
| Jotly Size Chart & Size Guide | #5– | #41 | #22 | #11 | #1– | #21 |
| Smart Size Chart & Size Guide | #4– | #31 | #41 | #31 | #3– | #3– |
| AI Frame: Size Chart & Try On | — | #28– | #1513 | #510 | #61 | #42 |
| Kiwi Size Chart & Recommender | #2– | #11 | #1– | #43 | #4– | #51 |
Key Insights:
- MP Size Chart & Size Guide's ranking held steady from #1 to #1 over the charted period.
- 3 of 5 top unit conversion apps improved their position; 1 declined — a mixed picture.
- MP Size Chart & Size Guide's market share is 42.1% — losing -6.0pp since the start of the chart.
Unit Conversion Shopify Apps — Market Share by Country
Top 5 countries driving installs for unit conversion Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market share | Change |
|---|---|---|
 United States | 29.1% | 4.58 |
 Netherlands | 14.7% | 0.71 |
 United Kingdom | 6.7% | 2.99 |
 Hong Kong | 5.3% | 1.79 |
 Australia | 4.8% | 1.21 |
Key Insights:
- United States accounts for 29.1% of unit conversion app installs — the single largest market.
- Top 3 markets (United States, Netherlands, United Kingdom) collectively cover 50.4% of all tracked unit conversion installs — globally distributed demand.
Fastest to 1,000 Reviews — Unit Conversion Shopify Apps
Race-style view of how the top 5 unit conversion 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 | 1,237 |
| MP Size Chart & Size Guide | Not yet reached | 874 |
| Smart Size Chart & Size Guide | Not yet reached | 146 |
| Jotly Size Chart & Size Guide | Not yet reached | 76 |
| AI Frame: Size Chart & Try On | Not yet reached | 22 |
Key Insights:
- Kiwi Size Chart & Recommender reached 1,000 reviews fastest — in 90 months since launch.
- 4 of the top 5 unit conversion apps haven't yet crossed 1,000 reviews — MP Size Chart & Size Guide is closest at 874 cumulative.
Top Unit Conversion Shopify Apps Ranked by Position
MP Size Chart & Size Guide dominates unit conversion with 42.1% market share — a clear category leader Shopify merchants gravitate to first, 32.1pp ahead of Jotly Size Chart & Size Guide (10.0%). Smart Size Chart & Size Guide sits at #3 with 9.2% share, rounding out the top tier. The top 3 apps together control 61.3% of unit conversion installs — a clear leadership tier with a meaningful long tail behind them. AI Fit Finder Size Recommender is the standout mover this month, climbing 2 positions — a momentum signal worth tracking.
MP Size Chart & Size Guide's 42.1% share looks dominant, but BF Size Chart & Size Guide slipped 2 positions this month and the rest of the top 5 has reshuffled. Unit Conversion apps are settled at the top and contested below — for merchants whose needs aren't a perfect MP Size Chart & Size Guide fit, the #2–#5 apps often surface better niche options.
Live Ranking and Market Share Trends Across Unit Conversion Shopify Apps
MP Size Chart & Size Guide held #1 steadily from May 2026 to Oct 2026 — an entrenched leader in unit conversion that challengers haven't displaced. Across the top 5 plotted unit conversion apps, 3 improved their ranking while 1 declined — the category is moving upward overall. MP Size Chart & Size Guide's share contracted -6.0pp from 48.1% (May 2026) to 42.1% (Oct 2026) — a meaningful narrowing of the leader's gap against other unit conversion apps over this window.
4 of 5 plotted unit conversion 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 Unit Conversion — 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 unit conversion 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 874, Smart Size Chart & Size Guide at 146, Jotly Size Chart & Size Guide at 76, AI Frame: Size Chart & Try On at 22 cumulative reviews. MP Size Chart & Size Guide is closest to the milestone — its current count puts it roughly 87% 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 unit conversion category.
Top 5 Apps in Unit Conversion
- MP Size Chart & Size Guide — Category leader for unit conversion with 42.1% market share and 5.0★.
- Jotly Size Chart & Size Guide — Currently ranked #2 with 10.0% market share and 5.0★.
- Smart Size Chart & Size Guide — Ranks #3 for unit conversion with 9.2% market share and 4.9★.
- AI Frame: Size Chart & Try On — Climbed 1 position this month to rank #4 — 4.6% share, 5.0★.
- Kiwi Size Chart & Recommender — Currently ranked #5 with 30.1% market share and 4.7★.
Unit Conversion Shopify Apps — Frequently Asked Questions
1. What is the best unit conversion app on Shopify?
MP Size Chart & Size Guide is the leading unit conversion app on Shopify, holding 42.1% of category market share with 879 reviews — a clear default for most merchants.
2. Which unit conversion app has the highest market share on Shopify?
MP Size Chart & Size Guide holds the highest market share among unit conversion apps at 42.1% (+9.15pp 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 unit conversion apps are tracked on Shopify?
ShopDigest tracks 96 unit conversion apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which unit conversion app is growing the fastest on Shopify?
AI Fit Finder Size Recommender has shown the strongest ranking momentum, climbing 2 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are unit conversion apps most popular on Shopify?
United States has the highest concentration of unit conversion app installs at 29.1%, followed by Netherlands at 14.7%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for unit conversion 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 unit conversion 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 unit conversion Shopify apps. See the Review Champions chart above for the full race.
