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 |
|---|---|---|---|
 MP Size Chart & Size Guide | 1 1 | 70.23% 10.83 | 874 4 |
 Pify Size Charts & Size Guides | 2 1 | 8.13% 11.29 | 38 2 |
 Smart Size Chart & Fit Finder | 3 3 | 10.35% 7.89 | 144 6 |
 Jotly Size Chart & Size Guide | 4 1 | 3.88% 3.34 | 73 6 |
 CSC: Size Chart & Size Guide | 5 | 0.42% 0.05 | 95 2 |
 BF Size Chart & Size Guide | 6 2 | 0.42% 1.53 | 140 0 |
 G: Size Chart & Size Guide | 7 4 | 0.18% 0.15 | 4 0 |
 Kiwi Size Chart & Recommender | 8 | 6.10% 2.64 | 1,205 25 |
 DEVNZO Size Chart & Size Guide | 9 7 | 0.09% 0.07 | 5 1 |
 ILM Size Chart & Size Guide | 10 3 | 0.01% 0.05 | 48 0 |
Key Insights:
- MP Size Chart & Size Guide commands 70.2% market share, 62.1pp ahead of Pify Size Charts & Size Guides — a concentrated size guide category.
- In the last 30 days, 4 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 (+25) — strong adoption momentum.
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 |
|---|---|---|---|---|---|---|
| MP Size Chart & Size Guide | #1 | #1 | #1 | #1 | #32 | #12 |
| Pify Size Charts & Size Guides | #31 | #21 | #11 | #21 | #2 | #2 |
| Smart Size Chart & Fit Finder | #2 | #1715 | #413 | #62 | #1913 | #316 |
| Jotly Size Chart & Size Guide | #41 | #31 | #21 | #31 | #41 | #4 |
| CSC: Size Chart & Size Guide | #6 | #42 | #31 | #41 | #51 | #5 |
Key Insights:
- MP Size Chart & Size Guide's ranking held steady from #1 to #1 over the charted period.
- 1 of 5 top size guide apps improved their position; 1 declined — a stable market.
- MP Size Chart & Size Guide's market share is 70.2% — gaining +6.3pp 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 | 25.3% | 1.59 |
 Netherlands | 10.0% | 1.87 |
 United Kingdom | 7.9% | 1.36 |
 India | 7.4% | 1.20 |
 Australia | 6.7% | 0.10 |
Key Insights:
- United States accounts for 25.3% of size guide app installs — the single largest market.
- Top 3 markets (United States, Netherlands, United Kingdom) collectively cover 43.2% of all tracked size guide installs — moderately concentrated demand.
- Netherlands is the fastest-growing market this month (+1.9pp) — emerging demand worth watching.
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
MP Size Chart & Size Guide dominates size guide with 70.2% market share — a clear category leader Shopify merchants gravitate to first, 62.1pp ahead of Pify Size Charts & Size Guides (8.1%). Smart Size Chart & Fit Finder sits at #3 with 10.4% share, rounding out the top tier. Together, the top 3 apps absorb 88.7% 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.
MP Size Chart & Size Guide's 70.2% lead has held stably this month, with the top 3 apps capturing 88.7% of all size guide installs. Pify Size Charts & Size Guides (8.1%) is the natural alternative when store fit or pricing rules out MP Size Chart & Size Guide.
Live Ranking and Market Share Trends Across Size Guide Shopify Apps
MP Size Chart & Size Guide held #1 steadily from Sep 2025 to Sep 2026 — an entrenched leader in size guide that challengers haven't displaced. Among the top 5 plotted size guide apps, 1 improved and 1 declined — rankings reshuffled without a single category-wide direction. MP Size Chart & Size Guide's share expanded +6.3pp from 63.9% (Sep 2025) to 70.2% (Sep 2026) — a sustained widening of the gap against other size guide apps over this window.
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
- MP Size Chart & Size Guide — Category leader for size guide with 70.2% market share and 5.0★.
- Pify Size Charts & Size Guides — Currently ranked #2 with 8.1% market share and 5.0★.
- Smart Size Chart & Fit Finder — Climbed 3 positions this month to rank #3 — 10.4% share, 5.0★.
- Jotly Size Chart & Size Guide — Currently ranked #4 with 3.9% market share and 5.0★.
- CSC: Size Chart & Size Guide — Ranks #5 for size guide with 0.4% market share and 5.0★.
Size Guide Shopify Apps — Frequently Asked Questions
1. What is the best size guide app on Shopify?
MP Size Chart & Size Guide is the leading size guide app on Shopify, holding 70.2% of category market share with 874 reviews — a clear default for most merchants.
2. Which size guide app has the highest market share on Shopify?
MP Size Chart & Size Guide holds the highest market share among size guide apps at 70.2% (+10.83pp 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 25.3%, followed by Netherlands at 10.0%. 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.
