Fitness Shopify Apps — Full Market Share Table
All tracked fitness 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 |  AI Fit Finder Size Recommender | 29.35% | 18.03 | Climbing |
| 2 |  RevenueHunt Product Quiz Maker | 24.01% | 12.25 | Climbing |
| 3 |  Smart Size Chart & Size Guide | 17.61% | 12.09 | Declining |
| 4 |  WAIR Size & Fit Recommendation | 13.21% | 17.65 | Declining |
| 5 |  Rubik Combined Listings Swatch | 4.70% | 3.11 | Climbing |
| 6 |  VFitz‑ The Vehicle Product Fit | 3.73% | 1.42 | Climbing |
| 7 |  Square: Sticky Add to Cart Bar | 3.07% | 1.30 | Declining |
| 8 |  RealSize ‑ Shoe Sizing & Fit | 1.60% | 0.98 | Climbing |
| 9 |  DORO Product Personalizer | 0.64% | 0.64 | Climbing |
| 10 |  ScaleChart: Size Chart & Guide | 0.61% | 0.61 | Climbing |
Showing 1-10 out of 28
Key Insights:
- AI Fit Finder Size Recommender holds 29.3% share of fitness app installs — 5.3pp ahead of RevenueHunt Product Quiz Maker (24.0%).
- Top 3 apps (AI Fit Finder Size Recommender, RevenueHunt Product Quiz Maker, Smart Size Chart & Size Guide) account for 71.0% of all fitness install share — a competitive market.
- AI Fit Finder Size Recommender is gaining share fastest this month (+18.03pp) — the largest single gainer among the top fitness apps by share.
- WAIR Size & Fit Recommendation is losing share fastest (-17.65pp) — could indicate a churning user base or a stronger challenger gaining ground.
Fitness Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 fitness Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| AI Fit Finder Size Recommender | 5.9%3.85 | 0.7%5.21 | 5.3%4.59 | 3.5%1.80 | 15.4%11.89 | 29.4%13.96 |
| RevenueHunt Product Quiz Maker | 0.4%0.01 | 0.5%0.10 | 2.6%2.08 | 17.6%15.00 | 14.0%3.59 | 24.0%10.02 |
| Smart Size Chart & Size Guide | 15.7%15.36 | 13.6%2.06 | 53.0%39.41 | 52.5%0.55 | 20.5%31.96 | 17.6%2.90 |
| WAIR Size & Fit Recommendation | 2.4% | 1.2%1.22 | 11.5%10.28 | 11.5%0.08 | 34.2%22.65 | 13.2%20.98 |
| Rubik Combined Listings Swatch | 0.1% | 0.2%0.07 | 0.8%0.68 | 1.0%0.17 | 1.9%0.88 | 4.7%2.81 |
Key Insights:
- AI Fit Finder Size Recommender's share expanded from 0.0% → 29.4% over the charted period.
- Of the top 5 tracked fitness apps, 5 grew share and 0 lost share — leader is widening the gap.
Top Fitness Shopify Apps by Country
Per-country market share rankings for fitness Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
| # | Worldwide |  United States |  India |  China |  United Kingdom |
|---|---|---|---|---|---|
| 1 | AI Fit Finder Size Recommender | WAIR Size & Fit Recommendation | Smart Size Chart & Size Guide | Rubik Combined Listings Swatch | AI Fit Finder Size Recommender |
| 2 | RevenueHunt Product Quiz Maker | RevenueHunt Product Quiz Maker | Square: Sticky Add to Cart Bar | DORO Product Personalizer | RevenueHunt Product Quiz Maker |
| 3 | Smart Size Chart & Size Guide | Smart Size Chart & Size Guide |  Fit Find: Size Chart & Guide | AI Fit Finder Size Recommender | Smart Size Chart & Size Guide |
| 4 | WAIR Size & Fit Recommendation | AI Fit Finder Size Recommender | Rubik Combined Listings Swatch | WAIR Size & Fit Recommendation | Rubik Combined Listings Swatch |
| 5 | Rubik Combined Listings Swatch | RealSize ‑ Shoe Sizing & Fit |  SwipeUp Shoppable Videos Reels | VFitz‑ The Vehicle Product Fit | Square: Sticky Add to Cart Bar |
Key Insights:
- WAIR Size & Fit Recommendation leads in United States; Smart Size Chart & Size Guide leads in India.
- AI Fit Finder Size Recommender leads worldwide, but 3 of 4 tracked markets crown a different leader — WAIR Size & Fit Recommendation in United States, Smart Size Chart & Size Guide in India, and others.
Top 5 Apps in Fitness
- AI Fit Finder Size Recommender — Leads fitness apps with 29.3% install share, rated 5.0★ — gaining share this month.
- WAIR Size & Fit Recommendation — Holds 13.2% of fitness app install share, rated 4.7★ — losing share this month.
- VFitz‑ The Vehicle Product Fit — Holds 3.7% of fitness app install share, rated 4.9★ — gaining share this month.
- Smart Size Chart & Size Guide — Holds 17.6% of fitness app install share, rated 4.9★ — losing share this month.
- RevenueHunt Product Quiz Maker — Holds 24.0% of fitness app install share, rated 4.9★ — gaining share this month.
Fitness Shopify Apps — Frequently Asked Questions
1. Which fitness app has the highest market share on Shopify?
AI Fit Finder Size Recommender currently holds the highest market share for fitness apps at 29.3%, but the category is competitive — RevenueHunt Product Quiz Maker is close behind at 24.0%. The right choice depends on your specific store needs.
2. How is market share calculated for fitness Shopify apps?
For fitness (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 fitness apps are gaining market share on Shopify?
AI Fit Finder Size Recommender is gaining fitness app market share fastest this month, up +18.03pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which fitness apps are losing market share on Shopify?
WAIR Size & Fit Recommendation has lost the most market share this month among fitness apps (-17.65pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most fitness Shopify app installs?
United States drives the largest share of fitness app installs at 34.7%, followed by United Kingdom at 11.1% and Netherlands at 6.4%. Use the country picker on the third card to compare market leaders by country.
6. How many fitness apps does ShopDigest track on Shopify?
ShopDigest tracks 96 fitness apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
