[Samsung Galaxy S21 FE] 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).

(S21 FE only supports 60hz and 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 (not working to all devices with OneUI4.**+, test first). ***

-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]

Need extra steps starting OneUI5.* except when rooted with magisk and using lsposed(experimental). Test it first

Screen-off Mods:

Force to Lowest Hz

-Force the lowest refresh rate on screen-off or Always-On Display(AOD) to improve standby power consumption a bit.

-Select refresh rate to set for AOD/screen-off[premium]

-Tasker plugin support.

Auto apply power saving mode during screen-off ***

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 [premium]

-Tasker plug-in support

Others

Battery protection mod (Experimental)

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

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: Premium license is on a per device basis (not per user)

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

****requires ADB for S21FE

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.

If google play protect will prompt during install that the app is built for older version of android and doesn't include the latest privacy protections, you can ignore it and proceed to the installation. For privacy related concern, please refer to FAQ No. 3.

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