Metiq

July 31, 2026 · View on GitHub


Metiq logo


No-nonsense noise app for focus, sleep, study, and relaxation.


License: GPL v3 CI

Ko-Fi GH sponsor

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Metiq

A no-nonsense noise app for focus, sleep, study, and relaxation. Colored noise (white, pink, brown, grey), natural ambient sounds you can layer into your own mixes, and binaural beats — with a sleep timer. Designed around two non-negotiables: simplicity and battery efficiency.

What it does

  • Colored noise playback — pre-rendered, seamless loops at -22 LUFS so every color sounds equally loud.
  • Ambient sounds and mixes — sea waves, rain, fire, birds, café, and wind. Layer them at independent levels, start from a preset, or save your own mixes.
  • Binaural beats — layer brainwave tones (Delta through Gamma) over any noise or ambient sound to nudge toward sleep, relaxation, or focus. Headphones needed.
  • Sleep timer — set hours, minutes, and seconds, or pick from your saved presets. Audio fades out gracefully when the timer expires.
  • Stays out of your way — no accounts, no cloud, no tracking, no ads. The app runs without an internet connection.
  • Light on your battery — a lean, native audio pipeline built on Android's AudioTrack, with a small memory and CPU footprint.
  • Familiar media controls — lock screen, notification, and Bluetooth headset transport buttons all work the way you'd expect.
  • Five languages out of the box — English, Italian, Spanish, French, Portuguese.
  • Free, forever — Metiq is free and will stay free. If you'd like to support the project, you can buy us a coffee on Ko-fi or sponsor us on GitHub.

Where to get it

Metiq targets Android 9 (API 28) and newer, which covers the vast majority of devices in active use today.

Contributing

If you'd like to file a bug, suggest a feature, or contribute code or translations, see CONTRIBUTING.md for setup instructions, the architecture overview, and the development workflow.

Credits

Metiq is built on the work of others — Jetpack Compose, Material 3, AndroidX Media3, the Kotlin standard library, and the Inter typeface by Rasmus Andersson. Full attribution is available inside the app under _Settings → About → Open-source licenses.

License

Metiq is licensed under the GNU General Public License v3.0 or later. See LICENSE for the full text.