Fitness Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top fitness 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 Fitness Shopify Apps Ranked Today
Top 10 fitness Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 WAIR Size & Fit Recommendation | 1 2 | 31.46% 25.26 | 33 1 |
 AI Fit Finder Size Recommender | 2 | 11.53% 2.67 | 21 0 |
 Smart Size Chart & Fit Finder | 3 2 | 29.36% 14.14 | 144 6 |
 True Fit: AI Size Guidance | 4 31 | 0.52% 0.52 | 22 0 |
 VFitz‑ The Vehicle Product Fit | 5 1 | 1.97% 0.68 | 32 1 |
 RevenueHunt Product Quiz Maker | 6 1 | 11.60% 4.83 | 455 3 |
 Square: Sticky Add to Cart Bar | 7 | 4.33% 1.67 | 143 4 |
 RealSize ‑ Shoe Sizing & Fit | 8 3 | 0.63% 0.53 | 8 0 |
 Faslet Size & Fit | 9 6 | 0.21% 0.19 | 16 1 |
 FITS AI virtual try‑on fashion | 10 4 | 0.10% 0.51 | 5 0 |
Key Insights:
- WAIR Size & Fit Recommendation commands 31.5% market share, 19.9pp ahead of AI Fit Finder Size Recommender — a competitive fitness category.
- In the last 30 days, 4 apps climbed and 4 dropped in ranking among the top 10 tracked fitness apps.
- Smart Size Chart & Fit Finder added the most new reviews this month (+6) — strong adoption momentum.
Live Ranking and Market Share Trends for Fitness Shopify Apps
Monthly ranking and market share trends for the top 5 fitness 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 |
|---|---|---|---|---|---|---|
| WAIR Size & Fit Recommendation | — | #3 | #41 | #22 | #2 | #11 |
| AI Fit Finder Size Recommender | #52 | #23 | #53 | #32 | #41 | #22 |
| Smart Size Chart & Fit Finder | #11 | #1 | #1 | #1 | #1 | #32 |
| True Fit: AI Size Guidance | #2315 | #221 | #22 | #308 | #333 | #429 |
| VFitz‑ The Vehicle Product Fit | #4 | #73 | #7 | #43 | #31 | #52 |
Key Insights:
- WAIR Size & Fit Recommendation's ranking improved from #3 to #1 over the charted period.
- 3 of 5 top fitness apps improved their position; 1 declined — a mixed picture.
- WAIR Size & Fit Recommendation's market share is 31.5% — gaining +29.1pp since the start of the chart.
Fitness Shopify Apps — Market Share by Country
Top 5 countries driving installs for fitness Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 45.2% | 15.02 |
 United Kingdom | 10.8% | 3.77 |
 Australia | 5.8% | 1.70 |
 Netherlands | 3.6% | 0.09 |
 India | 3.5% | 2.77 |
Key Insights:
- United States accounts for 45.2% of fitness app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Australia) collectively cover 61.9% of all tracked fitness installs — highly concentrated demand.
Fastest to 1,000 Reviews — Fitness Shopify Apps
Race-style view of how the top 5 fitness 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 |
|---|---|---|
| Smart Size Chart & Fit Finder | Not yet reached | 133 |
| WAIR Size & Fit Recommendation | Not yet reached | 30 |
| VFitz‑ The Vehicle Product Fit | Not yet reached | 29 |
| AI Fit Finder Size Recommender | Not yet reached | 21 |
| True Fit: AI Size Guidance | Not yet reached | 18 |
Key Insights:
- 5 of the top 5 fitness apps haven't yet crossed 1,000 reviews — Smart Size Chart & Fit Finder is closest at 133 cumulative.
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Top Fitness Shopify Apps Ranked by Position
WAIR Size & Fit Recommendation holds the top spot for fitness with 31.5% market share, but the gap to challengers is closing, 19.9pp ahead of AI Fit Finder Size Recommender (11.5%). Smart Size Chart & Fit Finder sits at #3 with 29.4% share, rounding out the top tier. Together, the top 3 apps absorb 72.4% of all fitness installs — a highly concentrated landscape with limited room for new entrants. True Fit: AI Size Guidance is the standout mover this month, climbing 31 positions — a momentum signal worth tracking.
WAIR Size & Fit Recommendation (31.5%) and AI Fit Finder Size Recommender (11.5%) sit close at the top of fitness apps, and True Fit: AI Size Guidance climbed 31 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 Fitness Shopify Apps
WAIR Size & Fit Recommendation climbed from #3 (May 2026) to #1 (Sep 2026) — a 2-position gain among fitness apps over the charted window. Across the top 5 plotted fitness apps, 3 improved their ranking while 1 declined — the category is moving upward overall. WAIR Size & Fit Recommendation's share expanded +29.1pp from 2.4% (May 2026) to 31.5% (Sep 2026) — a sustained widening of the gap against other fitness apps over this window.
A 2-position move for the leader over the charted fitness window is large enough to reflect real merchant adoption shifts, not just App Store noise — WAIR Size & Fit Recommendation's climb as of Sep 2026 is the strongest trajectory signal in this chart.
Review Growth Velocity in Fitness — Which Apps Grew Fastest
None of the top 5 fitness apps tracked here have yet crossed 1,000 reviews. Smart Size Chart & Fit Finder leads the set on current cumulative reviews with 133 — closest to the milestone, at roughly 13% of the way there.
With no app in this fitness set having crossed 1,000 reviews, the category is still in early adoption. Smart Size Chart & Fit Finder is the closest to breaking out at 133 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 Fitness
- WAIR Size & Fit Recommendation — Tops the fitness rankings with 31.5% market share and 4.7★.
- AI Fit Finder Size Recommender — Ranks #2 for fitness with 11.5% market share and 5.0★.
- Smart Size Chart & Fit Finder — Currently ranked #3 with 29.4% market share and 5.0★.
- True Fit: AI Size Guidance — Climbed 31 positions this month to rank #4 — 0.5% share, 4.4★.
- VFitz‑ The Vehicle Product Fit — Currently ranked #5 with 2.0% market share and 4.9★.
Fitness Shopify Apps — Frequently Asked Questions
1. What is the best fitness app on Shopify?
WAIR Size & Fit Recommendation ranks #1 for fitness apps with 31.5% market share, but the category is competitive — AI Fit Finder Size Recommender is close behind at 11.5%, so the best fit depends on your store's specific needs.
2. Which fitness app has the highest market share on Shopify?
WAIR Size & Fit Recommendation holds the highest market share among fitness apps at 31.5% (+25.26pp 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 fitness apps are tracked on Shopify?
ShopDigest tracks 96 fitness apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which fitness app is growing the fastest on Shopify?
True Fit: AI Size Guidance has shown the strongest ranking momentum, climbing 31 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are fitness apps most popular on Shopify?
United States has the highest concentration of fitness app installs at 45.2%, followed by United Kingdom at 10.8%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for fitness 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.
