Custom Notes Shopify Apps – Market Share Breakdown
(Updated September 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 |  AOV.ai Cart Drawer Cart Upsell | 78.41% | 10.94 | Climbing |
| 2 |  EA • Sticky Add to Cart Drawer | 8.45% | 9.94 | Declining |
| 3 |  Amp Slide Cart Upsell Drawer | 5.80% | 2.41 | Climbing |
| 4 |  TnC: Terms and Conditions Box | 3.07% | 2.91 | Declining |
| 5 |  RA Term and Condition Checkbox | 1.63% | 0.46 | Climbing |
| 6 |  Upsell.com ‑ ReConvert Upsell | 0.86% | 0.38 | Climbing |
| 7 |  Ego Cart Drawer Cart Upsell | 0.66% | 0.04 | Climbing |
| 8 |  Mini:Custom Fields Personalize | 0.30% | 0.00 | Declining |
| 9 |  Rebuy Personalization Engine | 0.29% | 0.20 | Climbing |
| 10 |  Upcart—Cart Drawer Cart Upsell | 0.23% | 0.06 | Climbing |
Showing 1-10 out of 22
Key Insights:
- AOV.ai Cart Drawer Cart Upsell holds 78.4% share of custom notes app installs — 70.0pp ahead of EA • Sticky Add to Cart Drawer (8.5%).
- Top 3 apps (AOV.ai Cart Drawer Cart Upsell, EA • Sticky Add to Cart Drawer, Amp Slide Cart Upsell Drawer) account for 92.7% of all custom notes install share — a fragmented market.
- AOV.ai Cart Drawer Cart Upsell is gaining share fastest this month (+10.94pp) — the largest single gainer among the top custom notes apps by share.
- EA • Sticky Add to Cart Drawer is losing share fastest (-9.94pp) — 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 | Apr 2026 | May 2026 | Jun 2026 | Jul 2026 | Aug 2026 | Sep 2026 |
|---|---|---|---|---|---|---|
| Amp Slide Cart Upsell Drawer | — | 3.7% | 3.4%0.32 | 5.8%2.4 | 25.1%19.3 | 32.1%7 |
| AOV.ai Cart Drawer Cart Upsell | — | 79.9% | 67.3%12.68 | 78.2%10.92 | 20.2%57.98 | 22.1%1.93 |
| RA Term and Condition Checkbox | — | 1.2% | 1.2%0.05 | 1.6%0.48 | 6.1%4.45 | 16.6%10.47 |
| TnC: Terms and Conditions Box | — | 0.6% | 6.0%5.33 | 3.1%2.86 | 36.0%32.94 | 10.2%25.88 |
| Mini:Custom Fields Personalize | — | 0.0% | 0.3%0.26 | 0.3%0.01 | 1.7%1.36 | 7.3%5.63 |
Key Insights:
- Amp Slide Cart Upsell Drawer's share expanded from 3.7% → 32.1% over the charted period.
- Of the top 5 tracked custom notes apps, 4 grew share and 1 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:
- AOV.ai Cart Drawer Cart Upsell leads custom notes apps in all 4 tracked markets — United States, India, China, United Kingdom.
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Top 5 Apps in Custom Notes
- RA Term and Condition Checkbox — Leads custom notes apps with 16.6% install share, rated 4.9★ — gaining share this month.
- Mini:Custom Fields Personalize — Holds 7.3% of custom notes app install share, rated 5.0★ — gaining share this month.
- Amp Slide Cart Upsell Drawer — Holds 32.1% of custom notes app install share, rated 5.0★ — gaining share this month.
- TnC: Terms and Conditions Box — Holds 10.2% of custom notes app install share, rated 4.9★ — losing share this month.
- AOV.ai Cart Drawer Cart Upsell — Holds 22.1% 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?
AOV.ai Cart Drawer Cart Upsell ranks #1 by share among custom notes apps at 78.4%, 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 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?
AOV.ai Cart Drawer Cart Upsell is gaining custom notes app market share fastest this month, up +10.94pp 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?
EA • Sticky Add to Cart Drawer has lost the most market share this month among custom notes apps (-9.94pp). 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 28.8%, followed by Netherlands at 11.1% and Australia at 6.5%. 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.
7. Why does the highest-share custom notes app differ from the #1 ranked app?
Rank reflects an app's current position in the Shopify App Store under custom notes (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 custom notes, AOV.ai Cart Drawer Cart Upsell leads on share; see the rankings tab for who currently holds #1 position.
