Brainfool

aily Brain Rust Prevention

Only for iPhone

$0.99 · Designed for iPhone. Not verified for macOS.

iPhone

Brainfool is the most brutally honest brain trainer you’ll ever use. Hard. Minimal. And done in minutes. Daily Challenge 1. One new ultra-tough puzzle auto-delivered every morning 2. Four modes: Sudoku, Binary, Nonogram, Slitherlink 3. Solve Nonograms to unlock cute, goofy pixel art 4. Roasted when you fail, celebrated when you win Built for Focus 1. No rankings. No social feeds. No notifications begging you back. 2. Offline-first: Play on the subway, in the air, or hiding from Wi-Fi. 3. Global daily puzzle: The entire world is stuck on the same level as you. 4. Streak tracking: How long can you keep the dumb alive? One and done. No endless levels. No pay-to-win. Just one clean shot at keeping your brain sharp. Download now. Your daily dumb is waiting.

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1. Bug fixes and polish

The developer, 伟宗 郑, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • 伟宗 郑
    Size
    • 36.4 MB
    Category
    • Games
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    16+
    • 16+
    • Contains
      Unrestricted Web Access
      Advertising
      Messaging and Chat
      User-Generated Content
    Copyright
    • © 2026 MoYun