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aka Alarm

Wakes you within a 30-min window when you start stirring
aka Alarm wakes you at the right moment within a 30-minute window you choose, instead of jolting you out of bed at a fixed time.

How it works: while an alarm is armed the app uses the microphone to measure the ambient sound level of your room. It maintains a rolling 5-minute baseline of "how quiet it really is" and watches for the level to rise above that baseline by a configurable threshold. When that happens — you turn over, sigh, shift the duvet — the alarm fires. If nothing happens, the alarm fires at the end of the window so you never oversleep.

Privacy: the microphone is active only while an alarm is set, and audio is processed in memory then immediately discarded. No audio buffer is ever written to disk, persisted, or transmitted off your device. There is no network code in this app at all — no analytics, no crash reporting, no third-party SDKs.

Features:

• Wake-up window with smart spike detection on the microphone
• 60-second gradual volume fade-in for the alarm tone
• Motion-driven snooze (lightly move the phone) with random duration clamped to the remaining window
• Slide up anywhere to dismiss
• Foreground service keeps the alarm reliable overnight
• Material 3 UI with dark + light mode

aka Alarm is open source under the MIT licence: https://github.com/seeingred/aka-alarm

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.

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  • Version 1.1.2 (5) suggested Added on Jun 21, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 14 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "microphone"
      Allows the app to make use of foreground services with the type "microphone"
    • show notifications
      Allows the app to show notifications
    • record audio
      This app can record audio using the microphone while the app is in use.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.aka.alarm.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 1.8 MiB PGP Signature | Build Log