Size Guide Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top size guide 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 Size Guide Shopify Apps Ranked Today
Top 10 size guide 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 5 | 34.31% 31.96 | 144 7 |
 MP Size Chart & Size Guide | 2 | 46.00% 15.17 | 873 5 |
 Pify Size Charts & Size Guides | 3 2 | 6.01% 12.13 | 38 3 |
 Jotly Size Chart & Size Guide | 4 1 | 4.72% 2.05 | 73 7 |
 CSC: Size Chart & Size Guide | 5 | 0.48% 0.12 | 95 2 |
 BF Size Chart & Size Guide | 6 2 | 0.64% 1.29 | 140 0 |
 G: Size Chart & Size Guide | 7 4 | 0.21% 0.18 | 4 0 |
 Kiwi Size Chart & Recommender | 8 | 7.30% 1.51 | 1,203 27 |
 DEVNZO Size Chart & Size Guide | 9 7 | 0.11% 0.09 | 5 2 |
 ILM Size Chart & Size Guide | 10 3 | 0.01% 0.05 | 48 0 |
Key Insights:
- Smart Size Chart & Fit Finder commands 34.3% market share, -11.7pp ahead of MP Size Chart & Size Guide — a competitive size guide category.
- In the last 30 days, 3 apps climbed and 4 dropped in ranking among the top 10 tracked size guide 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 (46.0%) 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 Size Guide Shopify Apps
Monthly ranking and market share trends for the top 5 size guide 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 | #2 | #1715 | #413 | #62 | #1913 | #118 |
| MP Size Chart & Size Guide | #1 | #1 | #1 | #1 | #32 | #21 |
| Pify Size Charts & Size Guides | #31 | #21 | #11 | #21 | #2 | #31 |
| Jotly Size Chart & Size Guide | #41 | #31 | #21 | #31 | #41 | #4 |
| CSC: Size Chart & Size Guide | #6 | #42 | #31 | #41 | #51 | #5 |
Key Insights:
- Smart Size Chart & Fit Finder's ranking improved from #2 to #1 over the charted period.
- 2 of 5 top size guide apps improved their position; 1 declined — a stable market.
- Smart Size Chart & Fit Finder's market share is 34.3% — gaining +23.9pp since the start of the chart.
Size Guide Shopify Apps — Market Share by Country
Top 5 countries driving installs for size guide Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 27.1% | 2.63 |
 United Kingdom | 10.1% | 0.13 |
 Netherlands | 8.2% | 0.50 |
 Australia | 8.2% | 2.36 |
 India | 7.8% | 0.30 |
Key Insights:
- United States accounts for 27.1% of size guide app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Netherlands) collectively cover 45.4% of all tracked size guide installs — moderately concentrated demand.
Fastest to 1,000 Reviews — Size Guide Shopify Apps
Race-style view of how the top 5 size guide 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 |
|---|---|---|
| MP Size Chart & Size Guide | Not yet reached | 821 |
| Smart Size Chart & Fit Finder | Not yet reached | 133 |
| CSC: Size Chart & Size Guide | Not yet reached | 93 |
| Jotly Size Chart & Size Guide | Not yet reached | 66 |
| Pify Size Charts & Size Guides | Not yet reached | 35 |
Key Insights:
- 5 of the top 5 size guide apps haven't yet crossed 1,000 reviews — MP Size Chart & Size Guide is closest at 821 cumulative.
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Top Size Guide Shopify Apps Ranked by Position
Smart Size Chart & Fit Finder holds the top spot for size guide with 34.3% market share, but the gap to challengers is closing, -11.7pp ahead of MP Size Chart & Size Guide (46.0%). Pify Size Charts & Size Guides sits at #3 with 6.0% share, rounding out the top tier. Together, the top 3 apps absorb 86.3% of all size guide installs — a highly concentrated landscape with limited room for new entrants. DEVNZO Size Chart & Size Guide is the standout mover this month, climbing 7 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 leads at 34.3%, only -11.7pp ahead of MP Size Chart & Size Guide (46.0%), with rankings stable this month. When the top two size guide apps demonstrate similar real-world adoption, fit-for-store usually matters more than rank — comparing pricing model, integration depth, and support hours separates them better than the share gap does.
Live Ranking and Market Share Trends Across Size Guide Shopify Apps
Smart Size Chart & Fit Finder climbed from #2 (Sep 2025) to #1 (Sep 2026) — a 1-position gain among size guide apps over the charted window. Across the top 5 plotted size guide apps, 2 improved their ranking while 1 declined — the category is moving upward overall. Smart Size Chart & Fit Finder's share held near 34.3% from Sep 2025 to Sep 2026 — a stable install base for size guide apps rather than active gain or loss.
Stable rankings across the top 5 plotted size guide apps mean merchants have largely settled on their preferences — challengers below the top 5 face an uphill path to break in.
Review Growth Velocity in Size Guide — Which Apps Grew Fastest
None of the top 5 size guide apps tracked here have yet crossed 1,000 reviews. MP Size Chart & Size Guide leads the set on current cumulative reviews with 821 — closest to the milestone, at roughly 82% of the way there.
With no app in this size guide set having crossed 1,000 reviews, the category is still in early adoption. MP Size Chart & Size Guide is the closest to breaking out at 821 cumulative reviews — worth tracking its per-month review velocity to see whether it's on pace to cross the milestone first.
Top 5 Apps in Size Guide
- Smart Size Chart & Fit Finder — Tops the size guide rankings with 34.3% market share and 5.0★.
- MP Size Chart & Size Guide — Ranks #2 for size guide with 46.0% market share and 5.0★.
- Pify Size Charts & Size Guides — Currently ranked #3 with 6.0% market share and 5.0★.
- Jotly Size Chart & Size Guide — Currently ranked #4 with 4.7% market share and 5.0★.
- CSC: Size Chart & Size Guide — Ranks #5 for size guide with 0.5% market share and 5.0★.
Size Guide Shopify Apps — Frequently Asked Questions
1. What is the best size guide app on Shopify?
Smart Size Chart & Fit Finder ranks #1 for size guide apps with 34.3% market share, but the category is competitive — MP Size Chart & Size Guide is close behind at 46.0%, so the best fit depends on your store's specific needs.
2. Which size guide app has the highest market share on Shopify?
Smart Size Chart & Fit Finder holds the highest market share among size guide apps at 34.3% (+31.96pp 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 size guide apps are tracked on Shopify?
ShopDigest tracks 96 size guide apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which size guide app is growing the fastest on Shopify?
DEVNZO Size Chart & Size Guide has shown the strongest ranking momentum, climbing 7 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are size guide apps most popular on Shopify?
United States has the highest concentration of size guide app installs at 27.1%, followed by United Kingdom at 10.1%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for size guide 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.
