ersa: Chord Machine

Music

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Ersa is a chord machine for exploring harmony, shaping sounds and building loops. Choose a key, play chord pads and turn musical ideas into performances. PLAY AND EXPLORE Play chords with touch controls and explore different chord qualities and voicings. Switch between chord, strum and arpeggiated performances. SHAPE YOUR SOUND Explore built-in sounds and adjust effects to suit your music. Save presets for ideas you want to return to. BUILD LOOPS Record and layer musical parts with looping tools. Ersa works without an account. Sound generation and looping happen on your device.

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A refreshed welcome screen makes getting started easier, with a landscape continuation option. Pocket is now called Pads. This update also refines default sustain behavior and corrects a piano label.

The developer, RETROPASTE LTD, 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
    RETROPASTE LTD
    Size
    170.3 MB
    Category
    Music
    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
    Age Rating
    4+
    Copyright
    © 2026 RETROPASTE LTD