Inventory Tracking Shopify Apps – Market Share Breakdown
(Updated October 2026) See which inventory tracking Shopify apps dominate installs and how their share has shifted over time. This keyword page shows the full market share table, monthly share trends for the leaders, and a country-level breakdown so you can compare global vs regional dominance.
Inventory Tracking Shopify Apps — Full Market Share Table
All tracked inventory tracking 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 |  Preorder, Back In Stock ‑ STOQ | 48.67% | 39.23 | Climbing |
| 2 |  Back In Stock,Notify Me: Kbite | 24.30% | 27.75 | Declining |
| 3 |  Notify Me! Back in Stock Alert | 16.60% | 2.77 | Declining |
| 4 |  REZ Preorder, Back In Stock | 7.83% | 6.13 | Declining |
| 5 |  Stockie Inventory Management | 0.92% | 1.84 | Declining |
| 6 |  Essent Preorder Back in Stock | 0.89% | 0.85 | Declining |
| 7 |  Preorder, Back in stock Duck | 0.45% | 0.23 | Climbing |
| 8 |  EasyScan Inventory & Barcode | 0.10% | 0.08 | Declining |
| 9 |  Etsy Integration by QuickSync | 0.06% | 0.02 | Declining |
| 10 |  Bat Preorders | Preorder Now | 0.06% | 0.02 | Climbing |
Showing 1-10 out of 23
Key Insights:
- Preorder, Back In Stock ‑ STOQ holds 48.7% share of inventory tracking app installs — 24.4pp ahead of Back In Stock,Notify Me: Kbite (24.3%).
- Top 3 apps (Preorder, Back In Stock ‑ STOQ, Back In Stock,Notify Me: Kbite, Notify Me! Back in Stock Alert) account for 89.6% of all inventory tracking install share — a concentrated market.
- Preorder, Back In Stock ‑ STOQ is gaining share fastest this month (+39.23pp) — the largest single gainer among the top inventory tracking apps by share.
- Back In Stock,Notify Me: Kbite is losing share fastest (-27.75pp) — could indicate a churning user base or a stronger challenger gaining ground.
Inventory Tracking Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 inventory tracking 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 |
|---|---|---|---|---|---|---|
| Preorder, Back In Stock ‑ STOQ | 30.1%20 | 9.1%20.99 | 8.5%0.6 | 8.2%0.35 | 27.8%19.61 | 48.6%20.82 |
| Back In Stock,Notify Me: Kbite | 41.8%18.86 | 45.4%3.52 | 44.4%0.93 | 44.7%0.3 | 44.8%0.09 | 24.5%20.32 |
| Notify Me! Back in Stock Alert | 7.6%2.27 | 8.9%1.37 | 9.2%0.3 | 9.6%0.34 | 16.7%7.11 | 16.6%0.05 |
| REZ Preorder, Back In Stock | 17.7%3.2 | 33.3%15.65 | 35.5%2.16 | 33.9%1.63 | 8.2%25.71 | 7.7%0.5 |
| Stockie Inventory Management | 0.3%0.34 | 0.9%0.55 | 1.3%0.35 | 1.5%0.26 | 0.9%0.57 | 0.9%0.01 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ's share contracted from 53.3% → 48.6% over the charted period.
- Of the top 5 tracked inventory tracking apps, 3 grew share and 2 lost share — challengers are eating into leader's share.
Top Inventory Tracking Shopify Apps by Country
Per-country market share rankings for inventory tracking 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 | | | | | |
| 2 | | | | | |
| 3 | | | | | |
| 4 | | | | | |
| 5 | | | | | |
Key Insights:
- Preorder, Back In Stock ‑ STOQ leads inventory tracking apps in 2 of 4 tracked markets (United States, United Kingdom).
- Preorder, Back In Stock ‑ STOQ leads worldwide, but 2 of 4 tracked markets crown a different leader — Back In Stock,Notify Me: Kbite in India, Back In Stock,Notify Me: Kbite in China.
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Top 5 Apps in Inventory Tracking
- Preorder, Back In Stock ‑ STOQ — Leads inventory tracking apps with 48.6% install share, rated 5.0★ — gaining share this month.
- Back In Stock,Notify Me: Kbite — Holds 24.5% of inventory tracking app install share, rated 5.0★ — losing share this month.
- Notify Me! Back in Stock Alert — Holds 16.6% of inventory tracking app install share, rated 4.9★ — losing share this month.
- Stockie Inventory Management — Holds 0.9% of inventory tracking app install share, rated 4.9★ — gaining share this month.
- REZ Preorder, Back In Stock — Holds 7.7% of inventory tracking app install share, rated 5.0★ — losing share this month.
Inventory Tracking Shopify Apps — Frequently Asked Questions
1. Which inventory tracking app has the highest market share on Shopify?
Preorder, Back In Stock ‑ STOQ dominates the inventory tracking category on Shopify with 48.7% of installs — 24.4pp ahead of Back In Stock,Notify Me: Kbite. This is a clear leader by share, so most merchants default to it unless they have a niche-fit reason to pick differently.
2. How is market share calculated for inventory tracking Shopify apps?
For inventory tracking (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 inventory tracking apps are gaining market share on Shopify?
Preorder, Back In Stock ‑ STOQ is gaining inventory tracking app market share fastest this month, up +39.23pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which inventory tracking apps are losing market share on Shopify?
Back In Stock,Notify Me: Kbite has lost the most market share this month among inventory tracking apps (-27.75pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most inventory tracking Shopify app installs?
United States drives the largest share of inventory tracking app installs at 37.1%, followed by United Kingdom at 10.6% and Australia at 9.5%. Use the country picker on the third card to compare market leaders by country.
6. How many inventory tracking apps does ShopDigest track on Shopify?
ShopDigest tracks 96 inventory tracking apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
