[Samsung Galaxy Tab S8] tribalfs:
About this app:

Refresh Rate Mods

Change default refresh rates

-Easily change the overall refresh rate settings of devices supporting multiple refresh rates.

-Set supported mid refresh rates as the maximum refresh rate limit for battery savings (e.g. 96hz instead of 120Hz).

-Quick settings shortcut

-tasker plugin support.

Motion smoothness mode switcher(Normal, Adaptive or High)***

-Set you device motion smoothness mode to stationary refresh rates (high mode) for better smoothness if so desired on Samsung devices with native Adaptive motion smoothness with a little trade-off to the battery.

-Apply adaptive mod on device that don't natively support adaptive mode [premium]

-Tasker plugin support.

Per-app refresh rate settings:

Set different refresh rate settings for every app either adaptive or fixed(stationary) [premium].

Motion smoothness on power saving mode ***

-GMH will apply a workaround to bypass 60Hz limitation on Power Saving Mode (PSM) on supported Samsung smartphones.

-Automatically apply workaround when PSM is enabled [premium]

Note: It's reported that this workaround is blocked and not working in OneUi5.0 ​

Screen-off Mods:

Force to Lowest Hz: Force the lowest refresh rate on screen-off or Always-On Display(AOD). This overrides Samsung's strange stock behavior which sets the refresh rate to the highest on screen off (update: it is now at 60hz since OneUI3.0) to improve standby power consumption a bit.

-Tasker plugin support

Auto apply power saving mode during screen-off (after ~ 10 secs)***

Auto disable Autosync***

Quick-doze mod

-Quickly enter doze mode during screen-off that can not be interrupted by motion [premium].***

-Tasker plugin support

Auto SENSORS OFF (experimental non-root workaround)

-Device sensors will automatically turn off while screen is off until the device is unlocked to help minimize battery-draining motion-triggered wakelocks while device is not being used.

-Tasker plug-in support

Others

Battery protection mod (Experimental)

-Option to set maximum charge to 86%-95%(for OneUI4+)[premium]

Quick resolution switcher

-Easily switch to any supported resolutions using the included quick setting tile***

-Tasker plugin support

Customizable refresh rate monitor

-Use statusbar or overlay which you can place anywhere on screen.

-Tasker plugin support.

Net speed statusbar indicator

OneUI inspired UI. Dynamic theme and Icon. Manual language selection

Note: The premium license is on a per device basis (not per user).

***these marked features require a one-time ADB procedure (this is not root)

Galaxy Max Hz background service is highly optimized. Background battery usage p is very negligible .

Info: This app targets older android sdk in order to control refresh rates without ADB setup or root. Just tap OK the dialog that says "This app was built for an older version of Android...." when opened for the first time. If OK button is not visible, just tap the blank space on the lowest portion of the dialog.

Important Notes for OneUI5.1.1 and higher :

You also need to "Allow restricted settings" to the app:

Open Settings > Apps > Galaxy MaxHz > Click top right menu and Allow restricted settings

Important Notes for OneUI6.0 (Android14) :

Starting OneUI6.0, installing the app on OneUi6.0 requires doing it via ADB using this command:

adb install --bypass-low-target-sdk-block galaxy_max_hz_v8.1.apk

Download

Changelogs

Github wiki

Localization/Translations ​

Contributors

Italian: @Orlaf

German:devj3ns, drbeat

Russian: @a43

Swedish:Steffe2

Turkish: osmanakar312

Greek: Nick

Spanish: @Sebastiansm

Czech: @Chrono Leggionaire

Simplified Chinese: @xiaolu7233123

French: @Jaxom84

Polish: @Pichulec

If you want to contribute on translations, please send me a message

If you want to get GMH Premium features and/or support GMH development but paypal is not available in your place, you can use Google Play Store.

Just download GMH Donation app from Google Play Store.

Note: The price might be slightly higher due to the relatively higher tax imposed on play store.

logs and more information here (specially before asking questions or reporting bugs).