Comparison

AI Study Notes vs DSE MistakeBook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI Study Notes

Features
Read full description

Turn your materials into notes, then use practice to find what needs another look. PickMyQuiz keeps materials, notes and practice in one notebook, helping you move from organising ideas to recalling, answering and reviewing. • Organise your own materials. Build notes and keep the original available for checking. • Recall before comparing. Explain an idea in your own words or compare sections of a note to find gaps. • Ask about your materials. Follow cited answers back to the source and check the claim. • Know what to study next. Review missed questions and revisit the related concepts. • Complete mixed-question mock tests. Fill-in answers are checked after submission; use references and optional AI feedback to confirm your self-assessment of written answers. • Listen to learning content with voices available on your device. AI content and grading suggestions can be incorrect. Check them against your materials and your own judgment. Recall drafts and confidence choices support personal reflection, not formal academic grading. Free features and paid upgrades are available. Current allowances and product prices are shown in the app.

About

DSE MistakeBook

Features
Read full description

Turn wrong answers into marks on the next exam. Mistake Book is a private mistake journal for students. Photograph a question you got wrong, review it before you forget, and quiz yourself on your own errors — so the same slip does not cost you again. HOW IT HELPS YOU SCORE Exams reward what you can still recall under pressure. Logging every mistake, then coming back on a schedule, is one of the most reliable ways to raise your result. Mistake Book follows the forgetting curve (1, 3, 7, and 14 days) so you revise while the memory is still there to save. CAPTURE IN SECONDS • Take a photo, pick from your album, or type the question • On-device OCR for Traditional Chinese and English — then edit any line • Save the correct answer, your wrong answer, and why you missed it • Tag by subject, topic, and mistake type REVIEW BEFORE YOU FORGET • A due list for today — mark a question reviewed when you are done • Local reminders: daily when items are due, plus a weekly progress summary • Study quiz: up to 3 past mistakes, even if they are not due yet • Reveal the answer only after you have tried it in your head SEE WHERE TO WORK HARDER • Totals, this week, due vs up to date • Breakdowns by subject and mistake type • Share a summary card when you want a snapshot of your progress YOUR DATA STAYS ON THIS IPHONE No account. No upload. Camera and Photos are used only to capture questions on this device. Export a ZIP backup from Settings, or import one to restore your library. Built for students who study in English and Traditional Chinese — keep every mistake in one place, and walk into the next exam better prepared.

Screenshots

AI Study Notes4 screens
DSE MistakeBook4 screens

Verdict

The call

The clearest difference is in-app purchases: DSE MistakeBook at none against AI Study Notes's 3. AI Study Notes's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. AI Study Notes sells 3 one-off in-app purchases. DSE MistakeBook asks for nothing beyond the download.

UpkeepUpdate frequency

AI Study Notes ships an update every 6 days, DSE MistakeBook every 2 weeks. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

Scorecard3 real differences Ā· 3 level
AI Study Notes versus DSE MistakeBook: the parameters behind the verdict, then further details
ParameterAI Study NotesDSE MistakeBook
PriceFreeFree
Update frequencyEvery 6 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size62 MB2 MB
Age rating4+4+
DeveloperPickmy AIYin Man Cheung

In-app purchases

3 purchases

AI Study Notes

One-time3
  • 90-day Pro Offer$12.99
  • Pro 180 Days$14.99
  • Pro 90 Days$14.99
None

DSE MistakeBook

No in-app purchases

Questions

Is AI Study Notes free?
AI Study Notes is free to download, with in-app purchases available.
Is DSE MistakeBook free?
DSE MistakeBook is free to download, with no in-app purchases.
Do AI Study Notes or DSE MistakeBook have ads?
Neither AI Study Notes nor DSE MistakeBook shows ads.
Which is updated more often, AI Study Notes or DSE MistakeBook?
AI Study Notes ships an update every 6 days, and DSE MistakeBook every 2 weeks. Most recently, AI Study Notes was updated on October 30, 2026 and DSE MistakeBook on October 16, 2026.

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