Custom Notes Shopify Apps – Market Share Breakdown
(Updated October 2026) See which custom notes 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.
Custom Notes Shopify Apps — Full Market Share Table
All tracked custom notes 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 |  TN Term and Condition Checkbox | 39.75% | 3.18 | Declining |
| 2 |  Amp Slide Cart Upsell Drawer | 22.67% | 7.44 | Climbing |
| 3 |  AOV.ai Cart Drawer Cart Upsell | 19.03% | 2.68 | Declining |
| 4 |  RA Term and Condition Checkbox | 7.12% | 2.48 | Climbing |
| 5 |  Upcart—Cart Drawer Cart Upsell | 4.58% | 1.91 | Climbing |
| 6 |  ReConvert post purchase upsell | 2.60% | 2.18 | Declining |
| 7 |  Mini:Custom Fields Personalize | 1.54% | 4.06 | Declining |
| 8 |  Snap Cart Drawer Cart Upsell | 1.27% | 0.21 | Climbing |
| 9 |  Ego Cart Drawer Cart Upsell | 0.57% | 0.35 | Climbing |
| 10 |  EA Sticky Add to Cart Drawer | 0.23% | 0.30 | Declining |
Showing 1-10 out of 23
Key Insights:
- TN Term and Condition Checkbox holds 39.8% share of custom notes app installs — 17.1pp ahead of Amp Slide Cart Upsell Drawer (22.7%).
- Top 3 apps (TN Term and Condition Checkbox, Amp Slide Cart Upsell Drawer, AOV.ai Cart Drawer Cart Upsell) account for 81.4% of all custom notes install share — a concentrated market.
- Amp Slide Cart Upsell Drawer is gaining share fastest this month (+7.44pp) — the largest single gainer among the top custom notes apps by share.
- Mini:Custom Fields Personalize is losing share fastest (-4.06pp) — could indicate a churning user base or a stronger challenger gaining ground.
Custom Notes Shopify Apps — Market Share Over Time
Monthly market share trajectory for the top 5 custom notes 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 |
|---|---|---|---|---|---|---|
| TN Term and Condition Checkbox | 0.6% | 5.9%5.28 | 3.1%2.77 | 36.9%33.75 | 10.6%26.34 | 41.4%30.88 |
| Amp Slide Cart Upsell Drawer | 3.7% | 3.4%0.35 | 5.7%2.36 | 24.6%18.85 | 31.1%6.48 | 23.3%7.73 |
| AOV.ai Cart Drawer Cart Upsell | 80.2% | 67.6%12.58 | 78.1%10.53 | 20.1%57.97 | 20.4%0.31 | 19.1%1.4 |
| Mini:Custom Fields Personalize | 0.0% | 0.3%0.25 | 0.3%0.02 | 1.6%1.35 | 7.3%5.69 | 6.3%1.05 |
| ReConvert post purchase upsell | 7.8% | 0.5%7.28 | 0.8%0.38 | 6.3%5.45 | 2.3%4 | 4.5%2.23 |
Key Insights:
- TN Term and Condition Checkbox's share expanded from 0.6% → 41.4% over the charted period.
- Of the top 5 tracked custom notes apps, 3 grew share and 2 lost share — leader is widening the gap.
Top Custom Notes Shopify Apps by Country
Per-country market share rankings for custom notes 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:
- TN Term and Condition Checkbox leads custom notes apps in 2 of 4 tracked markets (United States, United Kingdom).
- TN Term and Condition Checkbox leads worldwide, but 2 of 4 tracked markets crown a different leader — AOV.ai Cart Drawer Cart Upsell in India, AOV.ai Cart Drawer Cart Upsell in China.
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Top 5 Apps in Custom Notes
- TN Term and Condition Checkbox — Leads custom notes apps with 41.4% install share, rated 4.9★ — losing share this month.
- Mini:Custom Fields Personalize — Holds 6.3% of custom notes app install share, rated 5.0★ — gaining share this month.
- Amp Slide Cart Upsell Drawer — Holds 23.3% of custom notes app install share, rated 5.0★ — gaining share this month.
- AOV.ai Cart Drawer Cart Upsell — Holds 19.1% of custom notes app install share, rated 5.0★ — losing share this month.
- RA Term and Condition Checkbox — Holds 2.1% of custom notes app install share, rated 5.0★ — losing share this month.
Custom Notes Shopify Apps — Frequently Asked Questions
1. Which custom notes app has the highest market share on Shopify?
TN Term and Condition Checkbox dominates the custom notes category on Shopify with 39.8% of installs — 17.1pp ahead of Amp Slide Cart Upsell Drawer. This is a clear leader by share, so most merchants default to it unless they have a niche-fit reason to pick differently.
2. How is market share calculated for custom notes Shopify apps?
For custom notes (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 custom notes apps are gaining market share on Shopify?
Amp Slide Cart Upsell Drawer is gaining custom notes app market share fastest this month, up +7.44pp versus 30 days ago. Switch the table sub-tab to "Market Share Changes" to see all gainers ordered by movement.
4. Which custom notes apps are losing market share on Shopify?
Mini:Custom Fields Personalize has lost the most market share this month among custom notes apps (-4.06pp). Sort the table by Change (Low to High) to see the full list of decliners.
5. Which countries drive the most custom notes Shopify app installs?
United States drives the largest share of custom notes app installs at 34.7%, followed by Australia at 7.7% and Netherlands at 7.1%. Use the country picker on the third card to compare market leaders by country.
6. How many custom notes apps does ShopDigest track on Shopify?
ShopDigest tracks 96 custom notes apps on the Shopify App Store. Market share, rankings, and review data refresh weekly so you can track competitive shifts as they happen.
