Extension to the built-in Android Battery Saver
About this app
Android's built-in battery saver can be set quite finely. However, it is not configurable out of the box. SaverTuner allows you to take advantage of this built-in battery saver. You can now set different profiles that save the battery more or less aggressively. From a daily optimization that does not affect performance to an extreme optimization that saves power as much as possible.
This application is based on Buoy: https://github.com/tytydraco/Buoy. It adds support for Android 12+, save and restore profiles and improves the settings tiles.
Note that this app requires the WRITE_SECURE_SETTINGS permission that can be granted with EITHER a PC using ADB or root. Root is NOT required for this app, it is optional. Android 8.0+ is supported, with more features enabled on Android 10+.
Uninstalling the app will not reset the battery saver configuration. You must set the Default profile to undo all changes before uninstalling.
Features: - Advertising to other apps that low power mode is enabled - Android's data saver for metered WiFi or mobile data connections - The built-in dark mode - Launch boost to accelerate app starts - Vibration - Showing window and activity animations - Allowing apps to use the SoundTrigger HAL - Deferring full device backups for later - Deferring app setting backups for later - Using the built-in web firewall to protect against possibly malicious sites - Changing the location access mode restrictions for apps - Reducing the max brightness of the panel - Forcing all apps into standby mode - Forcing all apps to not check data in the background - Disabling unnecessary sensors - Using the Always-On-Display - Putting the device into deep sleep as soon as the screen turns off
It also enables something called "sticky" low power mode. Usually, when the device is plugged in and unplugged, the low power mode is then disabled. However, sticky mode re-applies low power mode afterwards to continue saving battery.
Licensed under BSD-2-Clause, by S1m.
What's New in v1.1.6
Imported from the F-Droid repository index.
- - Fix crash while importing config
Version history
Jul 1, 2025 · 1.7 MB · Android API 26–35 · code 13
Imported from the F-Droid repository index.
- - Fix crash while importing config
SHA-256 98944fb8ea6b34abe6d5a00c7d8d8d8313b51684b737f463d1f14800fb83c381
Jun 15, 2025 · 1.7 MB · Android API 26–35 · code 12
Imported from the F-Droid repository index.
- - Add vi translation
- - Fix UI
- - Some internal optimizations
- - Add data extraction rule
- - Bump dependencies
SHA-256 4b3ab86e34dd629ce237746f4466002791501042d773ca3723cba10cb8ac915d
Dec 9, 2024 · 1.7 MB · Android API 26–35 · code 11
Imported from the F-Droid repository index.
- - Update chinese
- - Add indonesian
- - Add monochrome icon
- - Target SDK 35
- - Bump dependencies
SHA-256 54bf4ee97dc4a376e28433ec201070b516568ab38836dfb1141947354d25c574
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- 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 s1m.savertuner 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, 1.1.5 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall SaverTuner 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 SaverTuner, and a listing is removed when the evidence for it stops holding up.
Get SaverTuner
Every source we list for s1m.savertuner 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
98944fb8ea6b34abe6d5a00c7d8d8d8313b51684b737f463d1f14800fb83c381
Signing certificate
48141bf3af68fe4273795ee9286935330a3a315c769ce3908e2f77ef2286ea94
Permissions Required
What each permission lets SaverTuner do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
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.
More Productivity apps
More from F-Droid
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.