Payment-Customizations-Functions Shopify Apps — Full Market Share Table
All tracked payment-customizations-functions 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 |  SMART Preorder & Back in stock | 36.98% | 9.40 | Climbing |
| 2 |  SMART Checkout Rules & Upsells | 33.69% | 2.92 | Climbing |
| 3 |  SMART Functions Creator | 7.12% | 2.20 | Climbing |
| 4 |  Blockify Checkout Customizer | 5.74% | 0.75 | Climbing |
| 5 |  Releasit COD Fee | 3.52% | 0.68 | Climbing |
| 6 |  HidePay: Hide Payment Methods | 3.29% | 0.45 | Climbing |
| 7 |  SMART Address Validator | 2.60% | 0.32 | Climbing |
| 8 |  Shopify Checkout Blocks | 2.53% | 0.25 | Declining |
| 9 |  Ako Taiwan CVS Pickup Einvoice | 2.07% | 0.01 | Declining |
| 10 |  ACOD: Cash On Delivery COD Fee | 1.38% | 0.01 | Declining |
Showing 1-10 out of 17
Key Insights:
- SMART Preorder & Back in stock holds 37.0% share of payment-customizations-functions app installs — 3.3pp ahead of SMART Checkout Rules & Upsells (33.7%).
- Top 3 apps (SMART Preorder & Back in stock, SMART Checkout Rules & Upsells, SMART Functions Creator) account for 77.8% of all payment-customizations-functions install share — a competitive market.
- SMART Preorder & Back in stock is gaining share fastest this month (+9.40pp) — the largest single gainer among the top payment-customizations-functions apps by share.
- Shopify Checkout Blocks is losing share fastest (-0.25pp) — could indicate a churning user base or a stronger challenger gaining ground.
Payment-Customizations-Functions Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 payment-customizations-functions Shopify apps over the past year — see who's gaining or losing install share month by month.
Charts Data
| App | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 | Oct 2026 | Nov 2026 |
|---|---|---|---|---|---|---|
| SMART Preorder & Back in stock | 15.8%4.98 | 21.1%5.27 | 25.6%4.52 | 29.6%3.97 | 34.9%5.26 | 37.0%2.11 |
| SMART Checkout Rules & Upsells | 31.0%1.97 | 34.3%3.30 | 38.2%3.93 | 38.5%0.26 | 35.9%2.60 | 33.7%2.21 |
| SMART Functions Creator | 7.7%1.36 | 6.8%0.81 | 5.9%0.91 | 5.4%0.52 | 6.1%0.69 | 7.1%1.02 |
| Blockify Checkout Customizer | 12.4%0.61 | 10.0%2.42 | 7.6%2.38 | 6.9%0.76 | 6.0%0.85 | 5.7%0.28 |
| Releasit COD Fee | 3.8%0.67 | 3.4%0.41 | 2.8%0.67 | 3.4%0.64 | 3.5%0.10 | 3.5%0.03 |
Key Insights:
- SMART Preorder & Back in stock's share expanded from 16.2% → 37.0% over the charted period.
- Of the top 5 tracked payment-customizations-functions apps, 3 grew share and 2 lost share — leader is widening the gap.
Top Payment-Customizations-Functions Shopify Apps by Country
Per-country market share rankings for payment-customizations-functions Shopify apps across 5 markets — see which apps lead in each country and where regional leaders diverge from the global leader.
United States
India
China
United KingdomKey Insights:
- SMART Checkout Rules & Upsells leads payment-customizations-functions apps in 3 of 4 tracked markets (United States, China, United Kingdom).
- SMART Preorder & Back in stock leads worldwide, but 3 of 4 tracked markets crown a different leader — SMART Checkout Rules & Upsells in United States, SMART Checkout Rules & Upsells in China, and others.
Top 5 Apps in Payment-Customizations-Functions
- SMART Preorder & Back in stock — Leads payment-customizations-functions apps with 37.0% install share, rated 5.0★ — gaining share this month.
- SMART Functions Creator — Holds 7.1% of payment-customizations-functions app install share, rated 5.0★ — gaining share this month.
- Blockify Checkout Customizer — Holds 5.7% of payment-customizations-functions app install share, rated 4.9★ — gaining share this month.
- HidePay: Hide Payment Methods — Holds 3.3% of payment-customizations-functions app install share, rated 4.8★ — gaining share this month.
- SMART Checkout Rules & Upsells — Holds 33.7% of payment-customizations-functions app install share, rated 5.0★ — gaining share this month.
Payment-Customizations-Functions Shopify Apps — Frequently Asked Questions
1. Which payment-customizations-functions app has the highest market share on Shopify?
SMART Preorder & Back in stock currently holds the highest market share for payment-customizations-functions apps at 37.0%, but the category is competitive — SMART Checkout Rules & Upsells is close behind at 33.7%. The right choice depends on your specific store needs.
2. How is market share calculated for payment-customizations-functions Shopify apps?
For payment-customizations-functions apps, market share is estimated from each app's recent review velocity (reviews collected in the past 6 months) divided by the total reviews collected by all apps in the collection over the same window. Reviews are a proxy for installs since Shopify doesn't publish install counts.
3. Which payment-customizations-functions apps are gaining market share on Shopify?
SMART Preorder & Back in stock is gaining payment-customizations-functions app market share fastest this month, up +9.40pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which payment-customizations-functions apps are losing market share on Shopify?
Shopify Checkout Blocks has lost the most market share this month among payment-customizations-functions apps (-0.25pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most payment-customizations-functions Shopify app installs?
United States drives the largest share of payment-customizations-functions app installs at 16.9%, followed by Germany at 5.1% and India at 5.0%. Use the country picker on the third card to compare market leaders by country.
6. How many payment-customizations-functions apps does ShopDigest track on Shopify?
ShopDigest tracks 18 payment-customizations-functions apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
