Retent vs Classes.bg
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Retent
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Turn what you study into long-term memory. Retent helps you remember what you learn by turning your study material into intelligent quizzes after each Focus session. STUDY SMARTER - Add your study material - Set up your desired quiz or flashcards - Read during your Focus session - Test your retention later with AI-powered quizzes FEATURES - AI-generated quizzes based on your notes - Smart Flashcards - Focus sessions that track your attention span - Points, ranks, leaderboards and coins - Ambient audio to help you study - Custom avatars, badges and profile frames WHY CHOOSE RETENT? Retent is built for real retention, not just studying. Instead of passively reviewing material, Retent helps reinforce what you learn so knowledge actually sticks. You can study your own notes, books, slides or any text in general. The app will in turn automatically generate quizzes to test your memory. With a point and coin system, ranks and total personalisation, Retent keeps you motivated while learning, and distraction free Focus sessions with optional ambient sounds help you stay in the zone. Retent is not about studying more - it is about remembering more. WHO IS IT FOR? - Students preparing for exams or studying in general - Anyone interested in improving their attention span while also learning Retent is not just another study timer - it helps reinforce what you learn so it actually stays with you. Start learning. Start remembering. Start Retenting.
Classes.bg
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Classes.bg е приложение, което заменя разхвърляните тетрадки, Excel таблици и безкрайни Viber групи в спортните, танцовите и езиковите школи. За родители и курсисти това е единственото необходимо приложение. Проследявайте присъствия, следете графици и плащайте такси сигурно онлайн. Всичко – от балет и плуване до музика и уроци – вече е на един клик разстояние.
Screenshots
Verdict
The clearest difference is in-app purchases: Classes.bg at none against Retent's 2. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Retent sells 2 in-app purchases, starting at $6.99 per month. Classes.bg asks for nothing beyond the download.
Retent ships an update every 9 days, Classes.bg every 8 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | Retent | Classes.bg |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 9 MB |
| Age rating | 9+ | 4+ |
| Developer | Kristiyan Grigorov | DEVIDS |
In-app purchases
Retent
- Retent Unlimited Monthly$6.991 Month
- Retent Unlimited Yearly$39.991 Year
Classes.bg
No in-app purchases









