Hikari Fold

Draw mirrors. Guide the light.

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

A little mirror, a new path. Explore reflection, color, splitters and filters in 36 quiet light puzzles. Play at your pace, with original music and no timer. Draw a small mirror in a dotted socket. Watch the light take a new path. Bring exactly the right color to every receiver and illuminate the room. Hikari Fold is a collection of 36 light-routing puzzles across six chapters. DRAW OR TAP Draw a diagonal to place a mirror, or tap to cycle its orientation. A live preview follows your drawing, and the path updates when you lift your finger. SIX WAYS TO THINK ABOUT LIGHT Learn reflection, find routes around walls, combine colors at receivers, split beams into two paths, and filter white light into its components. The final chapter brings the mechanics together. Choose any room freely. COLORS WITH CLEAR RULES Red and green make yellow; red and blue make purple; green and blue make cyan. Beams combine at a receiver, not simply where they cross. Extra color components prevent a clear. R, G and B labels supplement the colors. ROOM TO EXPERIMENT No timer. Undo, erase, restart and unlimited hints let you try another idea. A hint first previews one correct placement; tap again to apply it. YOUR OWN PACE Adjust original music, sound effects, haptics and reduced motion. Audio respects silent mode. Progress and mirror placements stay on your iPhone. No account, ads or in-app purchases. All rooms and hints work offline. No in-app cloud synchronization or transfer service. Available in Japanese and English.

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

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    Information

    Seller
    Koji Tamatsu
    Size
    2.2 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    Copyright
    © 2026 KO-JI APPS
  • Developer Website
  • Privacy Policy

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