Brain Games vs iAddThree
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Brain Games
Enhance cognitive skills with daily brain training exercises. This app offers 50 mini-games across six categories to improve awareness, adaptability, reflex, reasoning, precision, and patience. Keep your mind sharp and prepared for daily challenges.
- 50 mini-games
- 6 cognitive categories
- Daily brain training
- Mind sharpness improvement
- Memory training
- Cognitive skill enhancement
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Playing Left vs Right only 10 minutes daily can keep your mind sharp and help prepare you for a day full of challenges and new problems to solve! Train your brain with 50 mini-games in our 6 fun categories applicable to your day-to-day activities! * Awareness * Adaptability * Reflex * Reasoning * Precision * Patience You can start training every day for free. Additional games are available after watching a short video. If you want to be a VIP, you can enjoy unlimited games and more daily training. Did we mention you can try VIP for free too? You can try a free 7-day trial and if you don't like it, you can cancel at any time.* Try it for yourself, don't take it from us. Listen to the over 14000 people who have left reviews averaging 4.5 stars! Thank you so much for giving your brain a chance to stay fit! You can view our Privacy Policy here http://www.mochibits.com/privacy-policy and our Terms of Service here http://www.mochibits.com/terms-of-service (* PLEASE NOTE: You must cancel the subscription before the second week if you choose to not get a subscription.)
iAddThree
Engage your mind with a unique math game that challenges your focus and cognitive abilities. The objective is to add three to each number presented, with a special rule where numbers wrap around to zero instead of forming double digits. This simple yet effective exercise provides a mental workout.
- Cognitive training
- Focus improvement
- Unique math rules
- Brain exercise
- High score challenges
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Train your brain and improve your focus with the simple yet challenging math game, iAddThree. Adapted from an exercise that was used to measure cognitive focus in the popular book Thinking Fast and Slow by Daniel Kahneman, iAddThree engages your mind by bending the rules of basic math to give your brain the mental exercise it deserves. THE RULES------------- It's simple. Just add 3 to each of the four numbers that are presented. The challenge? No double digits. Instead, you must wrap around to 0. Normally, 8+3=11, but in iAddThree, 8+3=1. Think of it as a line of numbers that are constantly repeating. 8 -> 9 -> 0 -> 1 -> 2 -> 3. The struggle provided by this simple math game will have you boasting about your high score to all your friends. So, how well do you think you can iAddThree?
Screenshots
Verdict
The clearest difference is ratings volume: Brain Games at 25K against iAddThree's 1. Brain Games also leads on iOS requirement (15.0 vs 17.0). iAddThree's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 84%). On price, update cadence, ads and in-app purchases 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. Brain Games sells 11 in-app purchases, starting at $3.99 per 7 days and iAddThree sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
iAddThree holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Brain Games has 25K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 84% of Brain Games's written reviews are positive against 100% of iAddThree's.
Brain Games ships an update fortnightly, iAddThree every 3 weeks. The most recent releases landed on November 1, 2026 and October 14, 2026 respectively.
| Parameter | Brain Games | iAddThree |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (25K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 25K — better | 1 |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 206 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | MochiBits, LLC | Nikolai Nobadi |
Customer experience
Brain Games
iAddThree
Bugs and requests
Brain Games
Reported bugs
2 issues- Inconsistent game mechanics and rule application
- Compatibility issues with newer devices
Requested features
4 requests- More advanced and challenging games
- Ability to track progress and stats without paying
- Preview of upcoming games
- Customizable difficulty levels
iAddThree
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brain Games
- Left vs Right VIP Membership7 Days trial$3.997 Days
- Monthly VIP Subscription7 Days trial$4.991 Month
- Monthly VIP Subscription7 Days trial$6.991 Month
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- Monthly VIP Subscription7 Days trial$8.991 Month
- Monthly Subscription$9.991 Month
- Annual Subscription$29.991 Year
- Yearly VIP Subscription7 Days trial$39.991 Year
- Yearly VIP Subscription7 Days trial$47.991 Year
- Yearly VIP Subscription7 Days trial$59.991 Year
- Left vs Right VIP Week Pass$1.99
- Lifetime VIP Pass$49.99
iAddThree
- Remove Ads$0.99
Questions
Is Brain Games free?
Is iAddThree free?
Which has better reviews, Brain Games or iAddThree?
Do Brain Games or iAddThree have ads?
Which is updated more often, Brain Games or iAddThree?
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