Size Guide Shopify Apps — Full Market Share Table
All tracked size guide Shopify apps ranked by current install share, with change vs 30 days ago and Leader / Climbing / Declining / Stable status — filterable by country and date range.
| # | App | Market Share | Change | Status |
|---|---|---|---|---|
| 1 |  MP Size Chart & Size Guide | 61.22% | 5.44 | Declining |
| 2 |  Pify Size Charts & Size Guides | 12.95% | 4.20 | Climbing |
| 3 |  Jotly Size Chart & Size Guide | 9.89% | 5.91 | Climbing |
| 4 |  Smart Size Chart & Size Guide | 8.01% | 3.49 | Declining |
| 5 |  Kiwi Size Chart & Recommender | 5.46% | 2.00 | Declining |
| 6 |  CSC Size Chart & Size Guide | 0.88% | 0.44 | Climbing |
| 7 |  BF Size Chart & Size Guide | 0.53% | 0.08 | Climbing |
| 8 |  G: Size Chart & Size Guide | 0.47% | 0.12 | Climbing |
| 9 |  ScaleChart: Size Chart & Guide | 0.28% | 0.05 | Climbing |
| 10 |  DEVNZO Size Chart & Size Guide | 0.18% | 0.08 | Climbing |
Showing 1-10 out of 24
Key Insights:
- MP Size Chart & Size Guide holds 61.2% share of size guide app installs — 48.3pp ahead of Pify Size Charts & Size Guides (12.9%).
- Top 3 apps (MP Size Chart & Size Guide, Pify Size Charts & Size Guides, Jotly Size Chart & Size Guide) account for 84.1% of all size guide install share — a concentrated market.
- Jotly Size Chart & Size Guide is gaining share fastest this month (+5.91pp) — the largest single gainer among the top size guide apps by share.
- MP Size Chart & Size Guide is losing share fastest (-5.44pp) — could indicate a churning user base or a stronger challenger gaining ground.
Size Guide Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 size guide Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 | Nov 2026 |
|---|---|---|---|---|---|---|
| MP Size Chart & Size Guide | 78.3%– | 77.0%1.36 | 9.6%67.42 | 69.9%60.37 | 60.3%9.63 | 61.2%0.93 |
| Pify Size Charts & Size Guides | 34.8%28.93 | 5.8%28.96 | 3.2%2.58 | 9.0%5.73 | 13.0%4.04 | 12.9%0.05 |
| Jotly Size Chart & Size Guide | 14.9%11.85 | 4.2%10.64 | 1.2%2.99 | 3.8%2.59 | 5.4%1.61 | 9.9%4.45 |
| Smart Size Chart & Size Guide | 8.9%8.84 | 1.6%7.31 | 0.1%1.53 | 11.1%11.01 | 13.2%2.18 | 8.0%5.23 |
| Kiwi Size Chart & Recommender | 35.1%24.11 | 9.7%25.36 | 85.3%75.63 | 4.8%80.58 | 5.6%0.83 | 5.5%0.12 |
Key Insights:
- MP Size Chart & Size Guide's share expanded from 4.2% → 61.2% over the charted period.
- Of the top 5 tracked size guide apps, 5 grew share and 0 lost share — leader is widening the gap.
Top Size Guide Shopify Apps by Country
Per-country market share rankings for size guide Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
United States
India
China
United KingdomKey Insights:
- MP Size Chart & Size Guide leads size guide apps in 2 of 4 tracked markets (United States, United Kingdom).
- MP Size Chart & Size Guide leads worldwide, but 2 of 4 tracked markets crown a different leader — Pify Size Charts & Size Guides in India, Kiwi Size Chart & Recommender in China.
Top 5 Apps in Size Guide
- MP Size Chart & Size Guide — Leads size guide apps with 61.2% install share, rated 5.0★ — losing share this month.
- Pify Size Charts & Size Guides — Holds 12.9% of size guide app install share, rated 5.0★ — gaining share this month.
- Jotly Size Chart & Size Guide — Holds 9.9% of size guide app install share, rated 5.0★ — gaining share this month.
- Smart Size Chart & Size Guide — Holds 8.0% of size guide app install share, rated 4.9★ — losing share this month.
- CSC Size Chart & Size Guide — Holds 0.9% of size guide app install share, rated 4.9★ — gaining share this month.
Size Guide Shopify Apps — Frequently Asked Questions
1. Which size guide app has the highest market share on Shopify?
MP Size Chart & Size Guide dominates the size guide category on Shopify with 61.2% of installs — 48.3pp ahead of Pify Size Charts & Size Guides. This is a clear leader by share, so most merchants default to it unless they have a niche-fit reason to pick differently.
2. How is market share calculated for size guide Shopify apps?
For size guide (a keyword page), 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. Each app's weighted score is divided by the total weighted score across the keyword to give the share %. This reflects Shopify search behaviour: most installs come from the top of the results.
3. Which size guide apps are gaining market share on Shopify?
Jotly Size Chart & Size Guide is gaining size guide app market share fastest this month, up +5.91pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which size guide apps are losing market share on Shopify?
MP Size Chart & Size Guide has lost the most market share this month among size guide apps (-5.44pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most size guide Shopify app installs?
United States drives the largest share of size guide app installs at 29.1%, followed by Netherlands at 11.7% and United Kingdom at 7.1%. Use the country picker on the third card to compare market leaders by country.
6. How many size guide apps does ShopDigest track on Shopify?
ShopDigest tracks 96 size guide apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
