Custom Alerts Shopify Apps – Analytics & Insights
(Updated October 2026) Track the top custom alerts 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 Custom Alerts Shopify Apps Ranked Today
Top 10 custom alerts Shopify apps ranked by current App Store position, with market share and review counts. Updated weekly.
| App | Rank | Market Share | Reviews |
|---|---|---|---|
 Preorder, Back In Stock ‑ STOQ | 1 2 | 46.74% 28.97 | 3,774 123 |
 Back In Stock,Notify Me: Kbite | 2 1 | 23.01% 19.01 | 4,223 135 |
 Notify Me! Back in Stock Alert | 3 1 | 15.94% 8.52 | 3,871 137 |
 REZ Preorder, Back In Stock | 4 | 10.07% 1.24 | 1,578 58 |
 PreOrder Globo | Back in Stock | 5 | 2.40% 0.08 | 1,938 47 |
 Essent Preorder Back in Stock | 6 | 1.28% 0.12 | 1,295 56 |
 Preorder, Back in stock Duck | 7 1 | 0.30% 0.12 | 529 16 |
 Easyteam POS Time Clock In | 8 1 | 0.07% 0.02 | 326 9 |
 Stockie Inventory Management | 9 2 | 0.09% 0.11 | 162 20 |
 Heads Up: POS Customer Alerts | 10 28 | 0.00% 0.00 | 2 1 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ commands 46.7% market share, 23.7pp ahead of Back In Stock,Notify Me: Kbite — a concentrated custom alerts category.
- In the last 30 days, 4 apps climbed and 3 dropped in ranking among the top 10 tracked custom alerts apps.
- Notify Me! Back in Stock Alert added the most new reviews this month (+137) — strong adoption momentum.
Live Ranking and Market Share Trends for Custom Alerts Shopify Apps
Monthly ranking and market share trends for the top 5 custom alerts 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 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 |
|---|---|---|---|---|---|---|
| Preorder, Back In Stock ‑ STOQ | #1 | #43 | #4 | #4 | #13 | #1 |
| Back In Stock,Notify Me: Kbite | #2 | #11 | #1 | #1 | #21 | #2 |
| Notify Me! Back in Stock Alert | #4 | #31 | #3 | #21 | #31 | #3 |
| REZ Preorder, Back In Stock | #3 | #21 | #2 | #31 | #52 | #41 |
| PreOrder Globo | Back in Stock | #6 | #51 | #5 | #5 | #41 | #51 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ's ranking held steady from #1 to #1 over the charted period.
- 2 of 5 top custom alerts apps improved their position; 1 declined — a stable market.
- Preorder, Back In Stock ‑ STOQ's market share is 46.7% — losing -3.8pp since the start of the chart.
Custom Alerts Shopify Apps — Market Share by Country
Top 5 countries driving installs for custom alerts Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 36.4% | 0.04 |
 United Kingdom | 10.5% | 0.43 |
 Australia | 9.5% | 1.64 |
 Canada | 5.7% | 0.01 |
 Germany | 3.7% | 0.51 |
Key Insights:
- United States accounts for 36.4% of custom alerts app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Australia) collectively cover 56.4% of all tracked custom alerts installs — highly concentrated demand.
- Australia is the fastest-growing market this month (+1.6pp) — emerging demand worth watching.
Fastest to 1,000 Reviews — Custom Alerts Shopify Apps
Race-style view of how the top 5 custom alerts 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 |
|---|---|---|
| REZ Preorder, Back In Stock | 13 | 1,562 |
| Back In Stock,Notify Me: Kbite | 35 | 4,210 |
| Preorder, Back In Stock ‑ STOQ | 38 | 3,755 |
| Notify Me! Back in Stock Alert | 46 | 3,842 |
| PreOrder Globo | Back in Stock | 76 | 1,936 |
Key Insights:
- REZ Preorder, Back In Stock reached 1,000 reviews fastest — in 13 months since launch.
- Back In Stock,Notify Me: Kbite crossed 1,000 reviews in 35 months — 22 months behind REZ Preorder, Back In Stock.
- All 5 apps in this set have crossed 1,000 reviews — months-to-1k ranges from 13 to 76, a 63-month spread.
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Top Custom Alerts Shopify Apps Ranked by Position
Preorder, Back In Stock ‑ STOQ dominates custom alerts with 46.7% market share — a clear category leader Shopify merchants gravitate to first, 23.7pp ahead of Back In Stock,Notify Me: Kbite (23.0%). Notify Me! Back in Stock Alert sits at #3 with 15.9% share, rounding out the top tier. Together, the top 3 apps absorb 85.7% of all custom alerts installs — a highly concentrated landscape with limited room for new entrants. Heads Up: POS Customer Alerts is the standout mover this month, climbing 28 positions — a momentum signal worth tracking.
Preorder, Back In Stock ‑ STOQ's 46.7% lead has held stably this month, with the top 3 apps capturing 85.7% of all custom alerts installs. Back In Stock,Notify Me: Kbite (23.0%) is the natural alternative when store fit or pricing rules out Preorder, Back In Stock ‑ STOQ.
Live Ranking and Market Share Trends Across Custom Alerts Shopify Apps
Preorder, Back In Stock ‑ STOQ held #1 steadily from May 2026 to Oct 2026 — an entrenched leader in custom alerts that challengers haven't displaced. Across the top 5 plotted custom alerts apps, 2 improved their ranking while 1 declined — the category is moving upward overall. Preorder, Back In Stock ‑ STOQ's share contracted -3.8pp from 50.5% (May 2026) to 46.7% (Oct 2026) — a meaningful narrowing of the leader's gap against other custom alerts apps over this window.
Stable rankings across the top 5 plotted custom alerts apps mean merchants have largely settled on their preferences — challengers below the top 5 face an uphill path to break in.
Review Growth Velocity in Custom Alerts — Which Apps Grew Fastest
REZ Preorder, Back In Stock reached 1,000 reviews in 13 months since launch — the fastest ramp among the top 5 custom alerts apps tracked here. Back In Stock,Notify Me: Kbite in 35 months, Preorder, Back In Stock ‑ STOQ in 38 months, Notify Me! Back in Stock Alert in 46 months, and PreOrder Globo | Back in Stock took 76 months to cross the same milestone, a 63-month spread between the fastest and slowest in the set.
All 5 apps in this set have crossed 1,000 reviews, with current cumulative counts now ranging from 1,562 (REZ Preorder, Back In Stock) to 4,210 (Back In Stock,Notify Me: Kbite) — a 2.7× difference, showing how far ahead the leader has continued to build past the milestone.
The 63-month gap between REZ Preorder, Back In Stock's and PreOrder Globo | Back in Stock's time-to-1,000 highlights how unevenly product-market fit landed across this custom alerts set — the leader found its merchant audience early, while late-rampers took multiple years to reach the same review depth. For merchants comparing these apps today, slower-ramping apps may have closed the functionality gap but still operate on smaller review bases.
Top 5 Apps in Custom Alerts
- Preorder, Back In Stock ‑ STOQ — Category leader for custom alerts with 46.7% market share and 5.0★.
- Back In Stock,Notify Me: Kbite — Currently ranked #2 with 23.0% market share and 5.0★.
- Notify Me! Back in Stock Alert — Currently ranked #3 with 15.9% market share and 4.9★.
- REZ Preorder, Back In Stock — Ranks #4 for custom alerts with 10.1% market share and 5.0★.
- PreOrder Globo | Back in Stock — Ranks #5 for custom alerts with 2.4% market share and 4.9★.
Custom Alerts Shopify Apps — Frequently Asked Questions
1. What is the best custom alerts app on Shopify?
Preorder, Back In Stock ‑ STOQ is the leading custom alerts app on Shopify, holding 46.7% of category market share with 3,774 reviews — a clear default for most merchants.
2. Which custom alerts app has the highest market share on Shopify?
Preorder, Back In Stock ‑ STOQ holds the highest market share among custom alerts apps at 46.7% (+28.97pp 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 custom alerts apps are tracked on Shopify?
ShopDigest tracks 96 custom alerts apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which custom alerts app is growing the fastest on Shopify?
Heads Up: POS Customer Alerts has shown the strongest ranking momentum, climbing 28 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are custom alerts apps most popular on Shopify?
United States has the highest concentration of custom alerts app installs at 36.4%, followed by United Kingdom at 10.5%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for custom alerts 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.
7. Which custom alerts app reached 1,000 reviews fastest on Shopify?
REZ Preorder, Back In Stock hit 1,000 reviews in 13 months since launch — the fastest review ramp among tracked custom alerts Shopify apps. See the Review Champions chart above for the full race.
