# BRAIN 99: Quick Brain Battle! — Brain Battle with Friends!

> Multiplayer brain training game with diverse challenges and competitive rankings. (iPhone/iPad app by XOGAMES Inc.)

- Source: https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981 (this page in markdown: same URL + `.md`)
- Developer: [XOGAMES Inc](https://appshunter.io/developer/1133102824)
- Category: Games, Education, Casual, Trivia
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 311 MB
- Languages: Korean, American English, Japanese, Chinese (Traditional, Taiwan)
- Released: 2024-10-08
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981/reviews.md

## What is BRAIN 99?

Are you ready to Prove your Smarts with your Friends?
Welcome to the ultimate brain survival game, BRAIN 99!

[Game Features]
Enjoy a Brain Battle with your Family & Friends!
- Intuitive and Fun for kids to adults! Everyone can just pick up and play.
- Play with your Family and Friends in real-time through Friends Mode.

Boost Your Brainpower Everyday!
- Have fun everyday and discover yourself getting little smarter each time.
- No need to Learn separately. Just play to train!

Over 20 Brain-Activating Challenges to help you stay Sharp!
- Activate various parts of your brain with easy-to-learn challenges.
- Develop all areas like: Memory, Observation, Analysis, Focus, and Calculation.

Aim for a Higher Rank sand Earn every more Rewards!
- Compete for special rewards based on weekly and monthly rankings.
- Earn unique titles and unlock new challenges, missions.

Get Smarter! Level up your IQ now!
Show your friends how smart you are with BRAIN 99!

[Terms of Service]
http://wwwdata.xogames.co.kr/policies.html

[Privacy Policy]
http://wwwdata.xogames.co.kr/privacy.html

[Bug Report]
- E-Mail: support@xogames.co.kr
- Discord：https://bit.ly/XOdiscord

## Key features

- Real-time multiplayer brain battles
- Over 20 brain-activating challenges
- Improves memory, observation, analysis, focus, calculation
- Competitive rankings and rewards
- Intuitive gameplay for all ages
- Unlock new challenges and titles

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Coins x27000 | $17.99 | one-time |
| Coins x50000 | $22.99 | one-time |
| Coins x1100 | $1.99 | one-time |
| Coins x14900 | $14.99 | one-time |
| No Ads | $5.99 | one-time |
| Coins x2500 | $3.99 | one-time |
| Coins x7500 | $7.99 | one-time |
| Starter Pack Lv.1 | $1.99 | one-time |
| Starter Pack Lv.3 | $5.99 | one-time |
| Starter Pack | $5.99 | one-time |
| Starter Pack Lv.2 | $3.99 | one-time |
| Starter Pack All | $7.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981/reviews.md

### 1/5 — 친구초대

*2026-07-28*

친구초대가 안돼요

### 5/5 — これよ、これ！

*2024-11-25*

軽いけど完成度の高いゲーム探してて丁度良い。気軽にプレイできるから誰とも遊べられる！
これ作った人絶対セクシーだな

### 5/5 — 넘 재밌고 머리가 좋아지는 중

*2024-11-03*

처음에는 시간 떼우기 위해 했는데 할 수록 재밌고 하다보면 머리도 좋아지는게 아닌가 하는 느낌도 들어요 넘 피곤해서 머리가 돌아가지 않을때 이 게임하면 집중도 좋아지는거 같아서 자주 하려구요 ㅎㅎ

### 5/5 — 너무 유익하고 재미있어요!

*2024-10-18*

단계를 다 클리어 못할 때도 있지만 쉬운 것 부터 차근차근 해 나가며 너무 재미있고 집중하게되고 정말 똑똑해 질것 같은 기분! 친구랑 모여서 하면 꿀잼이예요!!

## Frequently asked questions about BRAIN 99

### What is BRAIN 99?

BRAIN 99 is a brain survival game that allows you to compete with friends and family in real-time through various brain-activating challenges. It aims to boost your cognitive skills like memory, observation, and calculation in a fun, playable format.

### How do I play BRAIN 99 with friends?

BRAIN 99 features a Friends Mode that enables real-time play with your family and friends. You can easily pick up and play together, making it an intuitive experience for all ages.

### What kind of challenges are in BRAIN 99?

The game offers over 20 brain-activating challenges designed to improve different cognitive areas. These include challenges that develop memory, observation, analysis, focus, and calculation skills, all easy to learn and play.

### Can I compete with other players in BRAIN 99?

Yes, BRAIN 99 allows you to compete for higher ranks and earn rewards based on weekly and monthly rankings. Achieving high ranks can earn you unique titles and unlock new challenges and missions.

### Is BRAIN 99 suitable for children?

Yes, BRAIN 99 is designed to be intuitive and fun for kids to adults, with an age rating of 4+. Everyone can pick up and play the game easily.

### Does BRAIN 99 have ads?

Yes, BRAIN 99 contains advertisements. As it is a free game with in-app purchases, ads are part of the monetization model.

### What devices can I play BRAIN 99 on?

BRAIN 99 is supported on iPhone, iPad, and iPod. It is designed to be accessible across various Apple mobile devices.

### How often is BRAIN 99 updated?

The latest version of BRAIN 99 is 26.1321.0, and it was last updated on January 22, 2025. Updates typically bring new features, bug fixes, and performance improvements.

## Version history (last 5 releases)

### 26.1321.0 — 2025-01-22

- Adjusted AI bot difficulty
- Minor bug fixes

### 26.1315.0 — 2025-01-15

- Mini-game usability and balance improvements
- Minor bug fixes

### 26.1213.0 — 2024-12-13

Added winter and Christmas limited-edition items

### 26.1025.0 — 2024-12-05

- Daily login bonus added
- Character avatar added to the main screen
- Enhanced avatar customization
- Implemented Energy system
- Added Halloween limited edition content
- Improved shop UI and UX
- Bug fixes

### 26.1029.0 — 2024-12-05

- Daily login bonus added
- Character avatar added to the main screen
- Enhanced avatar customization
- Implemented Energy system
- Added Halloween limited edition content
- Improved shop UI and UX
- Now supports Japanese
- Bug fixes

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## More apps by XOGAMES Inc

- [FINGER 99: Finger Showdown!](https://appshunter.io/ios/app/finger-99-finger-showdown/id6446511027)

All apps by XOGAMES Inc: https://appshunter.io/developer/1133102824

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*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 2026-08-23.*