Powers off your phone after inactivity, only inside a nightly kill zone.
About this app
BuzzKill powers your phone off when you stop using it at night, so notifications and the temptation to scroll cannot wake you up at 2am.
You set a nightly kill zone (e.g. 23:00 to 07:00). Inside that window, BuzzKill watches for the screen to stay off for a configurable number of minutes, then triggers the system shutdown via an accessibility service. Outside the zone the app does nothing.
To come back on in the morning, use your phone's built-in scheduled power-on (e.g. on OnePlus: Settings, Additional settings, Scheduled power on/off). BuzzKill cannot enable this for you, so an onboarding checklist reminds you.
Features:
- Single-screen, hardware-panel-styled UI. - Configurable kill zone, inactivity timeout, and a first-shutdown confirmation dialog. - Test trigger with a 10-second countdown that runs the shutdown sequence in dry-run mode, so you can verify it works without losing your work. - OEM-aware: power-dialog matching strings live in a per-OEM file, currently tuned for OnePlus (OxygenOS).
Required permissions:
- Accessibility service (the mechanism used to power off). - Disable battery optimization (otherwise OxygenOS kills the foreground service). - Notification permission (Android 13+, for the persistent kill-zone notification).
Primary target device is the OnePlus 11 on OxygenOS. Adding support for other OEMs (Pixel, Samsung, Xiaomi) is a data-only change in app/src/main/kotlin/ca/asmat/buzzkill/oem/.
Source code, issue tracker, and contributing guide on GitLab.
Licensed under Apache-2.0, by Carlos Asmat.
What's New in v1.0.9
Imported from the F-Droid repository index.
- Fix per-day "advanced day" modes: a day set to Off or AllDay now actually takes effect. Previously the setting was ignored, so a weekend pause still powered the phone off inside the time window (e.g. Saturday 1am).
Version history
Jul 4, 2026 · 9.2 MB · Android API 26–36 · code 10009
Imported from the F-Droid repository index.
- Fix per-day "advanced day" modes: a day set to Off or AllDay now actually takes effect. Previously the setting was ignored, so a weekend pause still powered the phone off inside the time window (e.g. Saturday 1am).
SHA-256 10cf12bd6a4ff51777fd38393e68561fd1abca134b878d3a71b57183c239a963
Jul 3, 2026 · 9.2 MB · Android API 26–36 · code 10008
Imported from the F-Droid repository index.
- Add Fastlane metadata for the F-Droid listing. Drop the foojay-resolver Gradle plugin so the build no longer downloads JDK toolchains over the network.
SHA-256 8fabdd5ee0183ce0aac514cb2fc3cf87436b6c0594ae3084498d4ead44a84461
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be ca.asmat.buzzkill is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.0.8 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall BuzzKill first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of BuzzKill, and a listing is removed when the evidence for it stops holding up.
Get BuzzKill
Every source we list for ca.asmat.buzzkill is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
10cf12bd6a4ff51777fd38393e68561fd1abca134b878d3a71b57183c239a963
Signing certificate
2db86c783d4dd457f56097157b086c3334fc2e77efcca3c42e1a5f217102f459
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
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