Back-In-Stock Emails Shopify Apps – Analytics & Insights
(Updated September 2026) Track the top back-in-stock emails 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 Back-In-Stock Emails Shopify Apps Ranked Today
Top 10 back-in-stock emails 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 | 54.14% 31.89 | 3,745 112 |
 Back In Stock,Notify Me: Kbite | 2 1 | 25.53% 25.88 | 4,176 122 |
 Preorder Now Presale Timesact | 3 1 | 5.45% 4.45 | 2,086 48 |
 Klaviyo: Email Marketing & SMS | 4 | 9.32% 0.55 | 3,333 88 |
 Essent Preorder Back in Stock | 5 1 | 2.93% 1.19 | 1,280 40 |
 Brevo PushOwl: Email,Push,SMS | 6 1 | 1.17% 0.27 | 2,262 39 |
 Omnisend Email Marketing & SMS | 7 2 | 0.82% 2.02 | 3,198 28 |
 Wiz ‑ AI Email Marketing | 8 2 | 0.15% 0.07 | 233 4 |
 Abandoned Cart Email Marketing | 9 | 0.04% 0.00 | 171 9 |
 Pop Convert ‑ Pop Ups, Banners | 10 2 | 0.21% 0.47 | 8,809 21 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ commands 54.1% market share, 28.6pp ahead of Back In Stock,Notify Me: Kbite — a concentrated back-in-stock emails category.
- In the last 30 days, 4 apps climbed and 4 dropped in ranking among the top 10 tracked back-in-stock emails apps.
- Back In Stock,Notify Me: Kbite added the most new reviews this month (+122) — strong adoption momentum.
Live Ranking and Market Share Trends for Back-In-Stock Emails Shopify Apps
Monthly ranking and market share trends for the top 5 back-in-stock emails 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 | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Preorder, Back In Stock ‑ STOQ | — | #1 | #21 | #31 | #3 | #12 |
| Back In Stock,Notify Me: Kbite | — | #2 | #11 | #1 | #1 | #21 |
| Preorder Now Presale Timesact | — | #4 | #4 | #22 | #2 | #31 |
| Klaviyo: Email Marketing & SMS | — | #5 | #32 | #41 | #4 | #4 |
| Essent Preorder Back in Stock | — | #3 | #52 | #5 | #5 | #5 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ's ranking held steady from #1 to #1 over the charted period.
- 2 of 5 top back-in-stock emails apps improved their position; 1 declined — a stable market.
- Preorder, Back In Stock ‑ STOQ's market share is 54.1% — losing -3.0pp since the start of the chart.
Back-In-Stock Emails Shopify Apps — Market Share by Country
Top 5 countries driving installs for back-in-stock emails Shopify apps, with current market share and 30-day change versus the previous month.
| Country | Market Share | Change |
|---|---|---|
 United States | 37.9% | 1.18 |
 United Kingdom | 9.9% | 1.12 |
 Australia | 9.4% | 2.03 |
 Canada | 6.1% | 0.23 |
 Germany | 3.7% | 0.33 |
Key Insights:
- United States accounts for 37.9% of back-in-stock emails app installs — the single largest market.
- Top 3 markets (United States, United Kingdom, Australia) collectively cover 57.1% of all tracked back-in-stock emails installs — highly concentrated demand.
- Australia is the fastest-growing market this month (+2.0pp) — emerging demand worth watching.
Fastest to 1,000 Reviews — Back-In-Stock Emails Shopify Apps
Race-style view of how the top 5 back-in-stock emails 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 |
|---|---|---|
| Essent Preorder Back in Stock | 17 | 1,219 |
| Back In Stock,Notify Me: Kbite | 35 | 3,934 |
| Preorder, Back In Stock ‑ STOQ | 38 | 3,554 |
| Preorder Now Presale Timesact | 41 | 1,966 |
| Klaviyo: Email Marketing & SMS | 114 | 3,027 |
Key Insights:
- Essent Preorder Back in Stock reached 1,000 reviews fastest — in 17 months since launch.
- Back In Stock,Notify Me: Kbite crossed 1,000 reviews in 35 months — 18 months behind Essent Preorder Back in Stock.
- All 5 apps in this set have crossed 1,000 reviews — months-to-1k ranges from 17 to 114, a 97-month spread.
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Top Back-In-Stock Emails Shopify Apps Ranked by Position
Preorder, Back In Stock ‑ STOQ dominates back-in-stock emails with 54.1% market share — a clear category leader Shopify merchants gravitate to first, 28.6pp ahead of Back In Stock,Notify Me: Kbite (25.5%). Preorder Now Presale Timesact sits at #3 with 5.5% share, rounding out the top tier. Together, the top 3 apps absorb 85.1% of all back-in-stock emails installs — a highly concentrated landscape with limited room for new entrants. Preorder, Back In Stock ‑ STOQ is the standout mover this month, climbing 2 positions — a momentum signal worth tracking.
Preorder, Back In Stock ‑ STOQ's 54.1% lead has held stably this month, with the top 3 apps capturing 85.1% of all back-in-stock emails installs. Back In Stock,Notify Me: Kbite (25.5%) is the natural alternative when store fit or pricing rules out Preorder, Back In Stock ‑ STOQ.
Live Ranking and Market Share Trends Across Back-In-Stock Emails Shopify Apps
Preorder, Back In Stock ‑ STOQ held #1 steadily from May 2026 to Sep 2026 — an entrenched leader in back-in-stock emails that challengers haven't displaced. Across the top 5 plotted back-in-stock emails apps, 2 improved their ranking while 1 declined — the category is moving upward overall. Preorder, Back In Stock ‑ STOQ's share contracted -3.0pp from 57.2% (May 2026) to 54.1% (Sep 2026) — a meaningful narrowing of the leader's gap against other back-in-stock emails apps over this window.
Stable rankings across the top 5 plotted back-in-stock emails 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 Back-In-Stock Emails — Which Apps Grew Fastest
Essent Preorder Back in Stock reached 1,000 reviews in 17 months since launch — the fastest ramp among the top 5 back-in-stock emails apps tracked here. Back In Stock,Notify Me: Kbite in 35 months, Preorder, Back In Stock ‑ STOQ in 38 months, Preorder Now Presale Timesact in 41 months, and Klaviyo: Email Marketing & SMS took 114 months to cross the same milestone, a 97-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 1,219 (Essent Preorder Back in Stock) to 3,934 (Back In Stock,Notify Me: Kbite) — a 3.2× difference, showing how far ahead the leader has continued to build past the milestone.
The 97-month gap between Essent Preorder Back in Stock's and Klaviyo: Email Marketing & SMS's time-to-1,000 highlights how unevenly product-market fit landed across this back-in-stock emails 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 Back-In-Stock Emails
- Preorder, Back In Stock ‑ STOQ — Category leader for back-in-stock emails with 54.1% market share and 5.0★.
- Back In Stock,Notify Me: Kbite — Currently ranked #2 with 25.5% market share and 5.0★.
- Preorder Now Presale Timesact — Currently ranked #3 with 5.5% market share and 5.0★.
- Klaviyo: Email Marketing & SMS — Ranks #4 for back-in-stock emails with 9.3% market share and 4.7★.
- Essent Preorder Back in Stock — Climbed 1 position this month to rank #5 — 2.9% share, 5.0★.
Back-In-Stock Emails Shopify Apps — Frequently Asked Questions
1. What is the best back-in-stock emails app on Shopify?
Preorder, Back In Stock ‑ STOQ is the leading back-in-stock emails app on Shopify, holding 54.1% of category market share with 3,745 reviews — a clear default for most merchants.
2. Which back-in-stock emails app has the highest market share on Shopify?
Preorder, Back In Stock ‑ STOQ holds the highest market share among back-in-stock emails apps at 54.1% (+31.89pp 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 back-in-stock emails apps are tracked on Shopify?
ShopDigest tracks 96 back-in-stock emails apps on the Shopify App Store. Rankings, market share, geography, and review data refresh weekly.
4. Which back-in-stock emails app is growing the fastest on Shopify?
Preorder, Back In Stock ‑ STOQ has shown the strongest ranking momentum, climbing 2 positions over the past 30 days. Use the Rankings tab to see full month-over-month trajectories.
5. Where are back-in-stock emails apps most popular on Shopify?
United States has the highest concentration of back-in-stock emails app installs at 37.9%, followed by United Kingdom at 9.9%. The Geography tab shows the full country-by-country breakdown.
6. How is market share calculated for back-in-stock emails 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 back-in-stock emails app reached 1,000 reviews fastest on Shopify?
Essent Preorder Back in Stock hit 1,000 reviews in 17 months since launch — the fastest review ramp among tracked back-in-stock emails Shopify apps. See the Review Champions chart above for the full race.
