Helios Kids vs Retent
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Helios Kids
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Welcome to Helios Kids β where learning meets adventure! Join Patti, Notti, and their amazing family in a magical world full of fairy tales, educational games, and creative activities made for curious little kids. To unlock all features you need a subscription. Fairy Tales β Beautifully narrated and illustrated classic stories with moral lessons Educational Games β Learn colors, numbers, shapes, and more through fun and play Repeat with Me β Practice pronunciation through fun and interactive repetition Write with Me β Strengthen language skills by tracing and writing letters and numbers Family Games β Because nothing is more valuable than time spent together STEM Challenges β Simple, hands-on experiments and logic games to spark curiosity with Patti and Notti Creative Fun β Drawing, puzzles, and imagination-boosting activities Safe and Ad-Free β A 100% kid-friendly space with no ads or distractions With Helios Kids, children explore, imagine, and learn while having fun every day. Whether it's bedtime stories, weekend challenges, or quiet time play, thereβs always something exciting to discover. Subscription details Unlock every story, game, and activity with a single subscription Monthly or Annual plans available Payment charged to your Apple ID account at confirmation of purchase Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period Manage subscriptions and turn off auto-renewal anytime in your Account Settings Download now and let the adventures begin! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
Screenshots
Verdict
The clearest difference is update cadence: Retent at every 8 days against Helios Kids's every 3 weeks. On price, ads, 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. Helios Kids sells 2 in-app purchases, starting at $5.99 per month and Retent sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Helios Kids ships an update every 3 weeks, Retent every 8 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.
| Parameter | Helios Kids | Retent |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 8 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 15.1 | 15.0 β better |
| Further details β not scored | ||
| Size | 137 MB | 27 MB |
| Age rating | 4+ | 9+ |
| Developer | Kaloyan Koravski | Kristiyan Grigorov |
In-app purchases
Helios Kids
- Monthly Subscription (1 Month)$5.991 Month
- Yearly Subscription (1 Year)$29.991 Year
Retent
- Retent Unlimited Monthly$6.991 Month
- Retent Unlimited Yearly$39.991 Year









