Hazelnote vs Kluuu
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Hazelnote
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Hand over a lecture, a script or a link. Out comes an ordered study note you can turn into a quiz, flashcards and learn games on the spot. No retyping. No summarizing at midnight. WHERE A NOTE COMES FROM Record a lecture, or upload one you already have Upload a PDF, a script or a text file Paste a link to an article Write or paste your own text Everything is transcribed, ordered and turned into a note with headings, emphasis and tables. TAKE NOTES WHILE YOU LISTEN Drop a bookmark when something matters. Type a note. Photograph the board. Each one lands at its own second of the recording, and the player takes you straight back there later. TURNING NOTES INTO KNOWLEDGE A quiz built from your own material Flashcards with "knew it / didn't know it" A chat across all your notes, with nothing invented from outside them LEARN GAMES INSTEAD OF DRILLS The Case: a murder in a closed house. Six rooms, four suspects, and every locked door opens only for a right answer from your own material. Card Match: pair up your flashcards against the clock. Quiz Race: answer before the time runs out. HOW IT WORKS 1. Pick a source: record, upload, paste or type 2. The note writes itself while you carry on 3. Quiz, flashcards and games are ready straight away KEEPING THE TERM STRAIGHT Folders by subject or term. Your notes stay in sync across your devices. Download Hazelnote and turn your next lecture into something that sticks. Hazelnote is offered as a subscription, with a free trial. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel it any time in your App Store settings.
Kluuu
Transform your study materials into interactive quizzes with AI. This app uses active recall to help you learn effectively, making studying feel like a game. Track your progress and prepare for exams with personalized quizzes.
- AI-generated quizzes from study material
- Active recall learning method
- Progress tracking and streaks
- Save and tag quizzes by subject
- Exam calendar
- Personalized content from user uploads
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Upload your study material β PDFs, slides, lecture notes, whatever β and Kluuu turns it into an interactive quiz in seconds. You get actively quizzed instead of passively reading. It's called Active Recall, it's scientifically the most effective way to study, and with KLUUU it feels like a game instead of studying. IT'S THAT EASY: Upload your material Generate your quiz Play until it sticks WHAT YOU GET: Quizzes from YOUR material β no random content, just exactly what's on the exam Streaks & progress tracking, so you're still showing up on day 4 Save your quizzes, tag them by subject or exam, and filter Exam calendar, so no test ever sneaks up on you again WHO IS IT FOR? High school, college, med school, bar exam β if you've got exams coming up and you're done with "I'll just review it later" (spoiler: you won't), KLUUU is for you. Highlighting feels productive. It isn't. Quizzing yourself is. Download Kluuu and turn your next set of notes into your first quiz. Future you in the exam room says thanks.
Screenshots
Verdict
The clearest difference is ads: Hazelnote at none against Kluuu's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Hazelnote sells 4 in-app purchases, starting at $4.99 per 7 days and Kluuu sells 6 in-app purchases, starting at $9.00 per 7 days. Whichever you choose, the download price is not the number that matters.
Hazelnote ships an update every 5 days, Kluuu every 4 days. Both last shipped on October 28, 2026.
| Parameter | Hazelnote | Kluuu |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 92.3% of reviews |
| Update frequency | Every 5 days | Every 4 days β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | β | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 79 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | Horize | S + B Labs UG (haftungsbeschrankt) |
In-app purchases
Hazelnote
- Hazelnote Weekly$4.997 Days
- Hazelnote Monthly$9.991 Month
- Hazelnote Annual$49.991 Year
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- Hazelnote Annual1 Year trial$49.991 Year
Kluuu
- Kluuu Pro (Weekly)$9.007 Days
- KLUUU Pro (Weekly)$10.007 Days
- Kluuu Pro (Monthly)$17.001 Month
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- Kluuu Pro (Monthly)$29.001 Month
- Kluuu Pro (JΓ€hrlich)$45.001 Year
- KLUUU Pro (Annual)3 Days trial$45.001 Year








