Best Sellers Shopify Apps — Full Market Share Table
All tracked best sellers 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 |  syncX: Stock Inventory Sync | 42.15% | 38.62 | Climbing |
| 2 |  Reputon Amazon Importer | 34.46% | 19.95 | Climbing |
| 3 |  Stamp Show Variants Collection | 11.21% | 32.09 | Declining |
| 4 |  Bestsellers reSort Collections | 5.19% | 2.74 | Declining |
| 5 |  GSC Product Labels & Badges | 2.13% | 0.56 | Climbing |
| 6 |  ZT Facebook Pixel TikTok Pixel | 1.25% | 2.80 | Declining |
| 7 |  Anti Bot: Spam Bot Blocker | 1.04% | 0.63 | Climbing |
| 8 |  Sami AI Product Labels & Badge | 0.97% | 0.53 | Declining |
| 9 |  Best Seller Sync ‑ Auto Update | 0.57% | 0.56 | Climbing |
| 10 |  KX AI Collection Sort | 0.44% | 0.23 | Declining |
Showing 1-10 out of 22
Key Insights:
- syncX: Stock Inventory Sync holds 42.1% share of best sellers app installs — 7.7pp ahead of Reputon Amazon Importer (34.5%).
- Top 3 apps (syncX: Stock Inventory Sync, Reputon Amazon Importer, Stamp Show Variants Collection) account for 87.8% of all best sellers install share — a fragmented market.
- syncX: Stock Inventory Sync is gaining share fastest this month (+38.62pp) — the largest single gainer among the top best sellers apps by share.
- Stamp Show Variants Collection is losing share fastest (-32.09pp) — could indicate a churning user base or a stronger challenger gaining ground.
Best Sellers Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 best sellers 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 |
|---|---|---|---|---|---|---|
| syncX: Stock Inventory Sync | 20.2%10.36 | 20.2%– | 12.9%7.32 | 5.6%7.31 | 13.3%7.73 | 42.1%28.83 |
| Reputon Amazon Importer | — | — | 9.6% | 6.1%3.48 | 45.5%39.42 | 34.5%11.06 |
| Stamp Show Variants Collection | 0.4%0.09 | 23.2%22.79 | 17.4%5.77 | 18.2%0.85 | 31.3%13.03 | 11.2%20.06 |
| Bestsellers reSort Collections | 3.1%0.79 | 3.4%0.31 | 3.2%0.16 | 3.3%0.07 | 3.9%0.59 | 5.2%1.30 |
| GSC Product Labels & Badges | 0.1%0.03 | 0.5%0.46 | 0.5%0.01 | 0.7%0.13 | 1.6%0.95 | 2.1%0.53 |
Key Insights:
- syncX: Stock Inventory Sync's share expanded from 9.9% → 42.1% over the charted period.
- Of the top 5 tracked best sellers apps, 5 grew share and 0 lost share — leader is widening the gap.
Top Best Sellers Shopify Apps by Country
Per-country market share rankings for best sellers 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 | syncX: Stock Inventory Sync | Reputon Amazon Importer | Reputon Amazon Importer | Reputon Amazon Importer | syncX: Stock Inventory Sync |
| 2 | Reputon Amazon Importer | syncX: Stock Inventory Sync | Bestsellers reSort Collections | GSC Product Labels & Badges | Reputon Amazon Importer |
| 3 | Stamp Show Variants Collection | Stamp Show Variants Collection | syncX: Stock Inventory Sync | Bestsellers reSort Collections | Stamp Show Variants Collection |
| 4 | Bestsellers reSort Collections | Bestsellers reSort Collections | Stamp Show Variants Collection | Best Seller Sync ‑ Auto Update | Bestsellers reSort Collections |
| 5 | GSC Product Labels & Badges | Anti Bot: Spam Bot Blocker | GSC Product Labels & Badges | syncX: Stock Inventory Sync | ZT Facebook Pixel TikTok Pixel |
Key Insights:
- Reputon Amazon Importer leads best sellers apps in 3 of 4 tracked markets (United States, India, China).
- syncX: Stock Inventory Sync leads worldwide, but 3 of 4 tracked markets crown a different leader — Reputon Amazon Importer in United States, Reputon Amazon Importer in India, and others.
Top 5 Apps in Best Sellers
- Bestsellers reSort Collections — Leads best sellers apps with 5.2% install share, rated 5.0★ — losing share this month.
- Best Seller Sync ‑ Auto Update — Holds 0.6% of best sellers app install share, rated 5.0★ — gaining share this month.
- syncX: Stock Inventory Sync — Holds 42.1% of best sellers app install share, rated 4.7★ — gaining share this month.
- Reputon Amazon Importer — Holds 34.5% of best sellers app install share, rated 4.9★ — gaining share this month.
- Stamp Show Variants Collection — Holds 11.2% of best sellers app install share, rated 5.0★ — losing share this month.
Best Sellers Shopify Apps — Frequently Asked Questions
1. Which best sellers app has the highest market share on Shopify?
syncX: Stock Inventory Sync ranks #1 by share among best sellers apps at 42.1%, but the market is fragmented — multiple apps capture meaningful share. Compare the top 5 on features and pricing before deciding.
2. How is market share calculated for best sellers Shopify apps?
For best sellers (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 best sellers apps are gaining market share on Shopify?
syncX: Stock Inventory Sync is gaining best sellers app market share fastest this month, up +38.62pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which best sellers apps are losing market share on Shopify?
Stamp Show Variants Collection has lost the most market share this month among best sellers apps (-32.09pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most best sellers Shopify app installs?
United States drives the largest share of best sellers app installs at 35.7%, followed by United Kingdom at 10.1% and Netherlands at 4.6%. Use the country picker on the third card to compare market leaders by country.
6. How many best sellers apps does ShopDigest track on Shopify?
ShopDigest tracks 95 best sellers apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
7. Why does the highest-share best sellers app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under best sellers (driven by Shopify's own algorithm), while market share on ShopDigest is estimated from review counts and other factors as a proxy for active installs. The two metrics move on independent dynamics, so the highest-share app and the #1-ranked app are not always the same — and a divergence between them is worth noting rather than assuming one will pull the other along. For best sellers, syncX: Stock Inventory Sync leads on share; see the rankings tab for who currently holds #1 position.
