Back-In-Stock Alerts Shopify Apps – Market Share Breakdown
(Updated October 2026) See which back-in-stock alerts 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.
Back-In-Stock Alerts Shopify Apps — Full Market Share Table
All tracked back-in-stock alerts 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 |  Notify Me! Back in Stock Alert | 49.75% | 4.71 | Climbing |
| 2 |  Preorder, Back In Stock ‑ STOQ | 28.07% | 10.15 | Climbing |
| 3 |  Back In Stock,Notify Me: Kbite | 16.22% | 7.08 | Declining |
| 4 |  REZ Preorder, Back In Stock | 4.11% | 7.26 | Declining |
| 5 |  Essent Preorder Back in Stock | 0.93% | 0.48 | Declining |
| 6 |  XFlow Back in Stock Alert | 0.62% | 0.20 | Climbing |
| 7 |  PreOrder Globo | Back in Stock | 0.09% | 0.00 | Climbing |
| 8 |  Bat Preorders | Preorder Now | 0.06% | 0.05 | Declining |
| 9 |  Amp Back in Stock & Preorder + | 0.05% | 0.17 | Declining |
| 10 |  Preorder, Back in stock Duck | 0.03% | 0.00 | Climbing |
Showing 1-10 out of 25
Key Insights:
- Notify Me! Back in Stock Alert holds 49.8% share of back-in-stock alerts app installs — 21.7pp ahead of Preorder, Back In Stock ‑ STOQ (28.1%).
- Top 3 apps (Notify Me! Back in Stock Alert, Preorder, Back In Stock ‑ STOQ, Back In Stock,Notify Me: Kbite) account for 94.0% of all back-in-stock alerts install share — a concentrated market.
- Preorder, Back In Stock ‑ STOQ is gaining share fastest this month (+10.15pp) — the largest single gainer among the top back-in-stock alerts apps by share.
- REZ Preorder, Back In Stock is losing share fastest (-7.26pp) — could indicate a churning user base or a stronger challenger gaining ground.
Back-In-Stock Alerts Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 back-in-stock alerts 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 |
|---|---|---|---|---|---|---|
| Notify Me! Back in Stock Alert | 0.2% | 0.1%0.07 | 42.6%42.49 | 44.5%1.94 | 49.1%4.53 | 49.9%0.8 |
| Preorder, Back In Stock ‑ STOQ | 53.6% | 12.7%40.95 | 7.9%4.82 | 10.2%2.28 | 28.6%18.46 | 28.1%0.56 |
| Back In Stock,Notify Me: Kbite | 22.5% | 47.3%24.73 | 14.3%32.92 | 22.9%8.54 | 16.1%6.74 | 16.4%0.21 |
| REZ Preorder, Back In Stock | 17.3% | 34.7%17.41 | 32.8%1.99 | 20.1%12.7 | 4.2%15.85 | 4.0%0.18 |
| Essent Preorder Back in Stock | 4.6% | 3.5%1.11 | 1.4%2.07 | 1.4%0.03 | 0.9%0.47 | 0.9%0.01 |
Key Insights:
- Notify Me! Back in Stock Alert's share expanded from 0.2% → 49.9% over the charted period.
- Of the top 5 tracked back-in-stock alerts apps, 1 grew share and 4 lost share — leader is widening the gap.
Top Back-In-Stock Alerts Shopify Apps by Country
Per-country market share rankings for back-in-stock alerts 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:
- Notify Me! Back in Stock Alert leads back-in-stock alerts apps in all 4 tracked markets — United States, India, China, United Kingdom.
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Top 5 Apps in Back-In-Stock Alerts
- Notify Me! Back in Stock Alert — Leads back-in-stock alerts apps with 49.9% install share, rated 4.9★ — gaining share this month.
- Preorder, Back In Stock ‑ STOQ — Holds 28.1% of back-in-stock alerts app install share, rated 5.0★ — gaining share this month.
- Back In Stock,Notify Me: Kbite — Holds 16.4% of back-in-stock alerts app install share, rated 5.0★ — losing share this month.
- Back in Stock Alert & Preorder — Holds 0 of back-in-stock alerts app install share, rated 5.0★.
- XFlow Back in Stock Alert — Holds 0.5% of back-in-stock alerts app install share, rated 5.0★.
Back-In-Stock Alerts Shopify Apps — Frequently Asked Questions
1. Which back-in-stock alerts app has the highest market share on Shopify?
Notify Me! Back in Stock Alert dominates the back-in-stock alerts category on Shopify with 49.8% of installs — 21.7pp ahead of Preorder, Back In Stock ‑ STOQ. 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 back-in-stock alerts Shopify apps?
For back-in-stock alerts (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 back-in-stock alerts apps are gaining market share on Shopify?
Preorder, Back In Stock ‑ STOQ is gaining back-in-stock alerts app market share fastest this month, up +10.15pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which back-in-stock alerts apps are losing market share on Shopify?
REZ Preorder, Back In Stock has lost the most market share this month among back-in-stock alerts apps (-7.26pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most back-in-stock alerts Shopify app installs?
United States drives the largest share of back-in-stock alerts app installs at 38.2%, followed by United Kingdom at 10.2% and Australia at 9.3%. Use the country picker on the third card to compare market leaders by country.
6. How many back-in-stock alerts apps does ShopDigest track on Shopify?
ShopDigest tracks 96 back-in-stock alerts apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
