Chordline

Connect Colors, Light the Grid

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Chordline is a line puzzle: connect the dots of matching colors and fill every square on the board. Each connection raises the pitch by a half step, and the moment the board is full, every line lights up at once. HOW TO PLAY • Drag from a colored dot to its matching pair • Retrace a line to erase it — no undo button needed • Connect every pair while filling the entire grid WHAT YOU GET • 984 puzzles across three ladders: Easy, Hard and Extreme • Every board has exactly one solution, and every one of them was verified • No fail state and no rush: a round runs 10 to 30 seconds • Shapes alongside colors, so pairs stay distinguishable with color blindness • Remove ads with a single purchase, no subscriptions A puzzle that turns solving into playing an instrument.

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- Share your clear: after a stage, send your time to a friend with one tap. - Optional reminders to come back and play. Chordline asks once, after your first clear, and you can turn them off in Settings. - The banner ad is back on the Home and play screens. Remove Ads still removes all of them.

Version 1.2.0

The developer, TAEHYUN KO, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

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

Accessibility

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

Information

Seller
TAEHYUN KO
Size
6.2 MB
Category
Puzzle
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
Languages
English and 6 more
  • English, French, German, Japanese, Korean, Portuguese, Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Chordline · Jacob Ko. All rights reserved.
  • Developer Website
  • Privacy Policy

    • More by TAEHYUN KO