# Brain Reactor — Brain games for 1–4 players > Multiplayer reaction and brain games for one shared device. (iPhone/iPad app by Buzly Labs Ltd..) - Source: https://appshunter.io/ios/app/brain-reactor/id386182342 (this page in markdown: same URL + `.md`) - Developer: [Buzly Labs Ltd.](https://appshunter.io/developer/380854584) - Category: Games, Education, Puzzle - Price: Free with in-app purchases - Rating: 4.70/5 from 20 App Store ratings · 35 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 8 MB - Languages: American English - Released: 2010-08-17 - Data updated: 2026-10-21 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/brain-reactor/id386182342/reviews.md ## What is Brain Reactor? Big laughs. Quick reactions. One device. Brain Reactor turns your iPhone or iPad into a party table for 2, 3 or 4 players. Face your friends, watch the same challenge and race to tap your button at the right moment. A correct answer earns a point. A mistake costs one. Who will react first? BUILD YOUR MATCH Choose your games with clear, colorful icons. Pick random rounds or play in order, set the number of rounds and decide how many correct answers finish each round. QUICK GAMES, DIFFERENT SKILLS Spot the bitten apple, solve an equation, judge overlapping shapes or time your tap when a car appears. The full collection also includes memory grids, dice totals, rock paper scissors, a rotating pointer, dominoes and more. MADE TO PLAY TOGETHER One shared field, large player buttons and instructions facing both sides keep everyone in the game. Play locally on the same device — no app account or online opponent required. YOUR SCREEN, YOUR STYLE Choose Light, Dark or Auto appearance across the entire game. Responsive layouts adapt to iPhone, iPhone Duo and iPad, and resizing pauses the match so you can get comfortable before continuing. 10 GAMES INCLUDED. 20 WITH FULL GAME. Start with the original ten games. The optional Brain Reactor Full Game purchase permanently unlocks the ten additional games and removes between-match ads. It is a one-time purchase, not a subscription. Purchases can be restored from the Full Game screen. Pick your games. Gather your friends. One more round? ## Key features - 1-4 player local multiplayer - Variety of quick mini-games - Single device gameplay - Customizable match settings - Light/Dark/Auto appearance modes - Responsive layouts for different devices ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Brain Reactor Full Game | $2.99 | one-time | ## Is Brain Reactor safe? Not enough ratings yet to assess Brain Reactor. ## Is Brain Reactor legit? Brain Reactor appears to be a legitimate app. The AppsHunter Legitimacy Score for Brain Reactor is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 35) All indexed reviews: https://appshunter.io/ios/app/brain-reactor/id386182342/reviews.md ### 1/5 — UPDATE 64Bit PEASE!! *2017-09-08* Bitte dringend auf 64 Bit updaten!!!! ### 5/5 — Update to ios11 please *2017-07-05* Great game to play with friends. Update it please :/ ### 5/5 — Update please *2017-05-13* Like ### 1/5 — Game selection settings not working *2016-12-15* I used to love this game but now there's a problem selecting games. ### 3/5 — A good game for relaxing *2013-05-10* It's indeed a good game, very interesting. We can choose to play with robot, or 1-3 friends. Obviously if you want to play with your friends, you'd better play it on Ipad. The screen of iphone is not large enough. Acturally, the form and content of every little game are very interesting, player need to focus on the screen and run their minds very quickly. But their are still some drawback: first, certain turtoral is necessary for people who play it for first time, and the turtoral should can be skiped. secondly, Can you make the picture more lovely and attractive? It seems all the popular games have a common points: have wonderful picture. Third, Can you provide more language for our choice? I will appreciate if very much if you can provide Chinese interface for me. ### 5/5 — 중독성도있고 좋네요 *2013-05-09* 중독성도잇고 난이도도적당해서 계속 하게되네요 여럿이서할수 잇는것도 좋아요 ### 5/5 — Awesome *2013-05-09* Very cool and awesome game! Recommended! ### 1/5 — Awful *2013-05-09* The graphics and sounds on this app are just plain bad and way outdated. ### 4/5 — Not Bad *2013-05-09* It kinda fun to test you brain and reaction time, either alone or multiplayer. I could not find any instructions, which seems to be an obvious need in a future version. ### 5/5 — Fun *2013-05-09* This is a really fun game. I can play this for hours. It's difficult but it's not annoying to play. I love this game. This is a must download. ## Frequently asked questions about Brain Reactor ### What is Brain Reactor? Brain Reactor is a multiplayer party game designed for 1-4 players to compete on a single iPhone or iPad. It features a collection of quick mini-games that test reaction time, logic, and quick thinking. ### How many games are included in Brain Reactor? The base version of Brain Reactor includes ten games. An optional 'Brain Reactor Full Game' purchase unlocks an additional ten games for a total of twenty. ### Does Brain Reactor require an internet connection? No, Brain Reactor is designed for local play on the same device. It does not require an app account or an online opponent, making it perfect for playing anywhere. ### What is the age rating for Brain Reactor? Brain Reactor has an age rating of 12+, indicating it is suitable for players aged 12 and older. ### How does the full game purchase work? The 'Brain Reactor Full Game' is a one-time purchase that permanently unlocks the additional ten games and removes ads that appear between matches in the free version. It is not a subscription. ### Can I play Brain Reactor on different devices? Yes, Brain Reactor supports responsive layouts that adapt to iPhone, iPhone Duo, and iPad devices. You can also choose between Light, Dark, or Auto appearance modes. ### What kind of mini-games are in Brain Reactor? The games involve various skills such as spotting differences (like a bitten apple), solving simple equations, judging overlapping shapes, timing taps, memory grids, dice totals, rock paper scissors, and more. ### How is Brain Reactor rated by users? Brain Reactor has a high user rating of 4.7 stars based on 20 ratings, suggesting a positive user experience and satisfaction with the gameplay. ## Version history (last 5 releases) ### 3.0 — 2026-10-20 Brain Reactor is back with a fresh party-game design! • Updated for iPhone Duo with layouts that adapt to its larger display and pause gameplay when the screen size changes. • Play together with 2, 3 or 4 players, or challenge AI on Easy, Medium or Hard. • 20 brain mini-games: 10 included and 10 available with Full Game. • Build a match with random or chosen games, or jump into a single game. • Larger instructions facing both sides, plus a Get Ready countdown. • Light, Dark and Auto themes. • Sound effects, haptic feedback and clearer answer reveals. • Moving-ball penalties, faster cup shuffles and more varied challenges. • One-time Full Game unlock with Restore purchases. • Share the game and contact support from Settings. ### 2.0 — 2012-12-10 - minor bugfixes ### 1.51 — 2012-11-30 - new icon - bug after call while playing fix - feedback popup fix ### 1.5 — 2012-10-25 Finally Big Update! :) - 3 and 4 players mode - 8 new games - pause button (just tap the stage) - restart game option - Button sounds - Two more languages: Turkish and Hungarian - iPhone5 and iOS6 support! - more fixes ### 1.2 — 2011-03-02 Italian language added ## More apps by Buzly Labs Ltd. - [Air Hockey Classic Pro](https://appshunter.io/ios/app/air-hockey-classic-pro/id380854581) - [Air Hockey Arena: 2 Player](https://appshunter.io/ios/app/air-hockey-arena-2-player/id383021369) - [MindRelax](https://appshunter.io/ios/app/mindrelax/id412081733) - [MindRelax Journey](https://appshunter.io/ios/app/mindrelax-journey/id412085700) - [Your Daily Horoscopes](https://appshunter.io/ios/app/your-daily-horoscopes/id417083228) All apps by Buzly Labs Ltd.: https://appshunter.io/developer/380854584 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-21.*