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SoundTree Recorder

Audio recorder with topic organization, marks, and page-like waveforms.
New in version 0.10.18
Added a "Back Up to Folder" backup option under Settings -> Storage which allows you to back up to a SAF-selected directory.
SoundTree is a personal audio recorder and organizer with an emphasis on bookmarks.

Everything stays on your device - no accounts, no cloud, no tracking, and no network permission at all.

Record high-quality M4A audio with a live scrolling waveform, pause and resume without starting a new file, and save from the notification while your screen is locked. Drop marks during recording or playback to flag moments worth revisiting. Sort recordings into a hierarchical topic tree, nested as deeply as you like. Back up automatically to an external drive or USB device.

Also supports audio-passthrough to earphones for monitoring audio inputs.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.10.18 (10018) suggested Added on Jun 22, 2026

    This version requires Android 9.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "microphone"
      Allows the app to make use of foreground services with the type "microphone"
    • change your audio settings
      Allows the app to modify global audio settings such as volume and which speaker is used for output.
    • show notifications
      Allows the app to show notifications
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • app.soundtree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.9 MiB PGP Signature | Build Log

  • New in version 0.10.12
    The topic picker now surfaces your most-used topics at the top for quick access. Frequent topics show a breadcrumb trail of ancestor topics so you always know where they sit in your hierarchy. All behaviour can be configured in Settings → Behavior → Frequent Topics.
  • Version 0.10.12 (10012) - Added on Jun 20, 2026

    This version requires Android 9.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "microphone"
      Allows the app to make use of foreground services with the type "microphone"
    • change your audio settings
      Allows the app to modify global audio settings such as volume and which speaker is used for output.
    • show notifications
      Allows the app to show notifications
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • app.soundtree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.8 MiB PGP Signature | Build Log

  • Version 0.10.10 (10010) - Added on Jun 16, 2026

    This version requires Android 9.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "microphone"
      Allows the app to make use of foreground services with the type "microphone"
    • change your audio settings
      Allows the app to modify global audio settings such as volume and which speaker is used for output.
    • show notifications
      Allows the app to show notifications
    • read audio files from shared storage
      Allows the app to read audio files from your shared storage.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • record audio
      This app can record audio using the microphone while the app is in use.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • app.soundtree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.8 MiB PGP Signature | Build Log