Payment Schedules Shopify Apps — Full Market Share Table
All tracked payment schedules 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! Back in Stock+Wishlist | 61.99% | 2.83 | Climbing |
| 2 |  REZ Preorder, Back In Stock | 22.18% | 2.59 | Declining |
| 3 |  Preorder Now Presale Timesact | 10.10% | 0.06 | Declining |
| 4 |  Essent Preorder Back in Stock | 4.60% | 0.16 | Declining |
| 5 |  Dibs – Preorders & Backorders | 0.94% | 0.01 | Climbing |
| 6 |  PreProduct pre‑order | 0.04% | 0.04 | Climbing |
| 7 |  Downpay: Partial Pay & Deposit | 0.04% | 0.02 | Declining |
| 8 |  TA Preorder & Back In Stock | 0.04% | 0.02 | Climbing |
| 9 |  K1 PreOrder Now & Deposit | 0.02% | 0.01 | Climbing |
| 10 |  EZ Preorder & Back In Stock | 0.02% | 0.01 | Climbing |
Showing 1-10 out of 24
Key Insights:
- Notify! Back in Stock+Wishlist holds 62.0% share of payment schedules app installs — 39.8pp ahead of REZ Preorder, Back In Stock (22.2%).
- Top 3 apps (Notify! Back in Stock+Wishlist, REZ Preorder, Back In Stock, Preorder Now Presale Timesact) account for 94.3% of all payment schedules install share — a competitive market.
- Notify! Back in Stock+Wishlist is gaining share fastest this month (+2.83pp) — the largest single gainer among the top payment schedules apps by share.
- REZ Preorder, Back In Stock is losing share fastest (-2.59pp) — could indicate a churning user base or a stronger challenger gaining ground.
Payment Schedules Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 payment schedules 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! Back in Stock+Wishlist | 24.9% | 25.5%0.53 | 25.2%0.25 | 51.9%26.71 | 60.0%8.01 | 39.2%20.77 |
 SMART Preorder & Back in stock | — | — | — | — | — | 34.1% |
| REZ Preorder, Back In Stock | 60.6% | 62.9%2.25 | 64.1%1.26 | 36.7%27.38 | 23.9%12.80 | 14.6%9.39 |
| Preorder Now Presale Timesact | 3.6% | 6.0%2.38 | 5.7%0.37 | 6.0%0.30 | 10.4%4.41 | 7.5%2.91 |
| Essent Preorder Back in Stock | 9.9% | 4.7%5.25 | 4.1%0.53 | 4.4%0.27 | 4.6%0.20 | 4.0%0.64 |
Key Insights:
- Notify! Back in Stock+Wishlist's share expanded from 24.9% → 39.2% over the charted period.
- Of the top 5 tracked payment schedules apps, 2 grew share and 2 lost share — leader is widening the gap.
Top Payment Schedules Shopify Apps by Country
Per-country market share rankings for payment schedules 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 | Notify! Back in Stock+Wishlist | Notify! Back in Stock+Wishlist | REZ Preorder, Back In Stock | Notify! Back in Stock+Wishlist | Notify! Back in Stock+Wishlist |
| 2 | REZ Preorder, Back In Stock | REZ Preorder, Back In Stock | Notify! Back in Stock+Wishlist | REZ Preorder, Back In Stock | REZ Preorder, Back In Stock |
| 3 | Preorder Now Presale Timesact | Preorder Now Presale Timesact | Essent Preorder Back in Stock |  Vicify Preorder, Back in Stock | Preorder Now Presale Timesact |
| 4 | Essent Preorder Back in Stock | Essent Preorder Back in Stock | Dibs – Preorders & Backorders | Preorder Now Presale Timesact | Essent Preorder Back in Stock |
| 5 | Dibs – Preorders & Backorders | Dibs – Preorders & Backorders | TA Preorder & Back In Stock | Essent Preorder Back in Stock | Dibs – Preorders & Backorders |
Key Insights:
- Notify! Back in Stock+Wishlist leads payment schedules apps in 3 of 4 tracked markets (United States, China, United Kingdom).
- Notify! Back in Stock+Wishlist leads worldwide, but India bucks the trend — REZ Preorder, Back In Stock leads there.
Top 5 Apps in Payment Schedules
- SMART Preorder & Back in stock — Leads payment schedules apps with 34.2% install share, rated 5.0★ — gaining share this month.
- Notify! Back in Stock+Wishlist — Holds 39.2% of payment schedules app install share, rated 4.9★ — losing share this month.
- Preorder Now Presale Timesact — Holds 7.5% of payment schedules app install share, rated 5.0★ — losing share this month.
- REZ Preorder, Back In Stock — Holds 14.6% of payment schedules app install share, rated 5.0★ — losing share this month.
- Essent Preorder Back in Stock — Holds 4.0% of payment schedules app install share, rated 5.0★ — losing share this month.
Payment Schedules Shopify Apps — Frequently Asked Questions
1. Which payment schedules app has the highest market share on Shopify?
Notify! Back in Stock+Wishlist currently holds the highest market share for payment schedules apps at 62.0%, but the category is competitive — REZ Preorder, Back In Stock is close behind at 22.2%. The right choice depends on your specific store needs.
2. How is market share calculated for payment schedules Shopify apps?
For payment schedules (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 payment schedules apps are gaining market share on Shopify?
Notify! Back in Stock+Wishlist is gaining payment schedules app market share fastest this month, up +2.83pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which payment schedules apps are losing market share on Shopify?
REZ Preorder, Back In Stock has lost the most market share this month among payment schedules apps (-2.59pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most payment schedules Shopify app installs?
United States drives the largest share of payment schedules app installs at 25.9%, followed by United Kingdom at 8.2% and Australia at 6.9%. Use the country picker on the third card to compare market leaders by country.
6. How many payment schedules apps does ShopDigest track on Shopify?
ShopDigest tracks 96 payment schedules 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 payment schedules app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under payment schedules (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 payment schedules, Notify! Back in Stock+Wishlist leads on share; see the rankings tab for who currently holds #1 position.
