Call Back Shopify Apps – Market Share Breakdown
(Updated September 2026) See which call back 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.
Call Back Shopify Apps — Full Market Share Table
All tracked call back 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 REZ | 48.49% | 3.03 | Climbing |
| 2 |  Preorder, Back In Stock ‑ STOQ | 25.85% | 7.64 | Climbing |
| 3 |  Back In Stock,Notify Me: Kbite | 8.35% | 2.69 | Climbing |
| 4 |  Notify Me! Back in Stock Alert | 5.14% | 17.04 | Declining |
| 5 |  PreOrder Globo | Back in Stock | 5.03% | 1.50 | Climbing |
| 6 |  Essent Preorder Back in Stock | 2.01% | 0.28 | Climbing |
| 7 |  BUCKS Currency Converter PRO++ | 1.99% | 0.57 | Climbing |
| 8 |  Rosie: AI Phone Support Agent | 1.57% | 1.57 | Climbing |
| 9 |  Preorder, Back in stock Duck | 0.42% | 0.11 | Climbing |
| 10 |  Amp Back in Stock & Preorder + | 0.33% | 0.15 | Declining |
Showing 1-10 out of 24
Key Insights:
- Preorder, Back In Stock REZ holds 48.5% share of call back app installs — 22.6pp ahead of Preorder, Back In Stock ‑ STOQ (25.8%).
- Top 3 apps (Preorder, Back In Stock REZ, Preorder, Back In Stock ‑ STOQ, Back In Stock,Notify Me: Kbite) account for 82.7% of all call back install share — a fragmented market.
- Preorder, Back In Stock ‑ STOQ is gaining share fastest this month (+7.64pp) — the largest single gainer among the top call back apps by share.
- Notify Me! Back in Stock Alert is losing share fastest (-17.04pp) — could indicate a churning user base or a stronger challenger gaining ground.
Call Back Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 call back Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Preorder, Back In Stock ‑ STOQ | — | — | 18.2% | 25.7%7.53 | 24.9%0.78 | 46.0%21.11 |
| Back In Stock,Notify Me: Kbite | — | — | 5.7% | 8.3%2.7 | 12.5%4.19 | 16.5%3.92 |
| Preorder, Back In Stock REZ | — | — | 45.5% | 48.6%3.08 | 41.9%6.73 | 12.4%29.46 |
| Notify Me! Back in Stock Alert | — | — | 22.2% | 5.2%17.02 | 6.7%1.52 | 8.9%2.16 |
| PreOrder Globo | Back in Stock | — | — | 3.5% | 5.1%1.59 | 3.1%2 | 3.8%0.72 |
Key Insights:
- Preorder, Back In Stock ‑ STOQ's share expanded from 18.2% → 46.0% over the charted period.
- Of the top 5 tracked call back apps, 3 grew share and 2 lost share — leader is widening the gap.
Top Call Back Shopify Apps by Country
Per-country market share rankings for call back 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 REZ leads call back apps in all 4 tracked markets — United States, India, China, United Kingdom.
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Top 5 Apps in Call Back
- Mega Callback — Leads call back apps with 0 install share, rated 5.0★.
- Pickup Abandoned Cart Recovery — Holds 2.9% of call back app install share, rated 5.0★ — gaining share this month.
- Rosie: AI Phone Support Agent — Holds 2.5% of call back app install share, rated 5.0★ — gaining share this month.
- AI Voice Agent ‑ Shopdigits — Holds 0.4% of call back app install share, rated 4.1★ — gaining share this month.
- EZ Callback Request — Holds 0 of call back app install share, rated 4.4★.
Call Back Shopify Apps — Frequently Asked Questions
1. Which call back app has the highest market share on Shopify?
Preorder, Back In Stock REZ ranks #1 by share among call back apps at 48.5%, 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 call back Shopify apps?
For call back (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 call back apps are gaining market share on Shopify?
Preorder, Back In Stock ‑ STOQ is gaining call back app market share fastest this month, up +7.64pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which call back apps are losing market share on Shopify?
Notify Me! Back in Stock Alert has lost the most market share this month among call back apps (-17.04pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most call back Shopify app installs?
United States drives the largest share of call back app installs at 38.3%, followed by United Kingdom at 10.7% and Australia at 9.1%. Use the country picker on the third card to compare market leaders by country.
6. How many call back apps does ShopDigest track on Shopify?
ShopDigest tracks 96 call back 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 call back app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under call back (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 call back, Preorder, Back In Stock REZ leads on share; see the rankings tab for who currently holds #1 position.
