Investigate ads firstextreme
56% here · 2.1% in its market · 10.2% store-wide.
Kilonotes-Notes & Mark up PDF
Hefei T-Stack Information Technology Co., Ltd.
4.63star4,923 ratings
5 decisions.
Shares of this app’s 75 recent negative reviews.
Investigate limits & capsextreme
6.7% here · 4.8% in its market · 1.9% store-wide.
Watch billingelevated
45.3% here · 28.6% in its market · 30.8% store-wide.
Skip performance and UX work
Performance, UX all run at or below the store’s typical rate.
Protect support and login & auth
Support, Login & auth all run well below the store’s typical rate.
n = 6. Too thin to act on. We recount weekly.
The market in numbers
All 12 panel members · 2026-09-02 snapshot.
| App | Ratings | Ads |
|---|---|---|
 Kilonotes-Notes & Mark up PDF | 4,923 | 56% |
 CollaNote: Notes & PDF Markup | 13,505 | 8.4% |
 Noteshelf 3: AI Digital Notes | 6,422 | 6.1% |
 Noteful: Notes & PDF Markup | 23,299 | 3% |
 SuperNote Notes Recorder+Photo | 4,472 | 2.5% |
 MyScript Notes: AI Handwriting | 38,551 | 0.8% |
 Microsoft OneNote | 1,061,640 | 0.4% |
 Goodnotes: AI Notes, Docs, PDF | 450,346 | 0% |
 Penbook: Paper Planner & Notes | 45,077 | 0% |
 tatter | 1,344 | 0% |
 Element Note | 2,557 | 0% |
 Feenote - Notes and lists | 1,994 | 0% |
Counted from real App Store reviews · 2026-09-02
How this is counted
Every number is arithmetic over the reviews we hold, re-counted weekly: nothing modelled, nothing scored. Themes come from a frozen pattern classifier rather than a model reading reviews, so the same review always lands in the same bucket. Shares are of this app’s own recent negative reviews; the market figure is its rivals with this app excluded. The graded words have fixed cutoffs against the store’s typical rate: elevated from 1.15, high from 2, extreme from 3.5 times it. The page says what is broken and how it compares, never how to fix it, and never whether this app can win.