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Themes / Apps / Mods [App]Galaxy Max Hz (Refresh Rate Mods, Screen-off Mods and More)

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Senior Member
Mar 28, 2014
v7.13.00 in-app update now up.

tribalfs said:
Anti-flicker: added minimum brightness threshold for Adaptive mod similar to the native one. When the device's display brightness falls below the set minimum brightness threshold, adaptive mod will pause and will resume once the brightness increases again above the threshold. This is for devices who are experiencing flickers when refresh rate switches at certain low brightness level.
Stability and bug fixes


New member
Jul 22, 2021


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Senior Member
Mar 28, 2014
v7.14.10 in-app update now available :)

-48hz on force lowest on screen off/AOD now works on S20/+/Ultra on any refresh rate mode
-improvements on brightness threshold for adaptive mod performance(anti-flicker)
-added quick settings tille to toggle min hz for adaptive mod on supported devices
-added tasker option to toggle min hz for adaptive mod on supported devices
-other fixes

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    About this app:
    • Refresh Rate Control: Easily control the max refresh rate (Hz) of android devices with multiple refresh rates (e.g. note20 ultra, s20/S20+/S20Ultra, z fold 2, s21/s21+/s21Ultra, tab S7/S7+, z fold 3, z flip 3). This app can limit max refresh rate to 96hz (or any available refresh rate) on supported smartphones - you can save power with negligible difference on smoothness. Use either the in-app toggle or quick settings tile - ADB setup or Root NOT needed.

    • Switch to High: Option to use High(Fixed) motion smoothness mode on Samsung devices with native Adaptive motion smoothness***

      Current Samsung smartphones natively supporting adaptive refresh rates:
      • Galaxy Note 20 Ultra
      • Galaxy Z Fold 2
      • Galaxy S21, S21+, S21 Ultra

    • Refresh Rate Monitor: Observe how multiple refresh rates work on your device. Use either the in-app toggle or quick settings tile

    • Quick Resolution Switcher: Easily switch to any supported resolutions using the included quick setting tile***

    • Quick High/Adaptive on Power Saving Mode: Easily switch to high or adaptive motion smoothness mode (from Standard) even on power saving mode on supported Samsung smartphones.***

    • Force to Lowest Hz: Force lowest refresh rate on screen-off/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 - ADB setup or Root NOT needed.

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

    • Tasker plugin support: Automate GMH settings using the app's Tasker plugin support. Supported actions/variables: Max Refresh Rate, Keep Motion Smoothness on PSM, Motion Smoothness Mode, Quick-doze Mod, Change Screen Resolution. (new in v7.10). More info in FAQs below.

      Premium Features:

    • Keep High/Adaptive motion smoothness when power saving mode is enabled whether manually or by the system/adaptive power saving***

    • Adaptive refresh rate mod for devices supporting multiple refresh rates but do not have the native Adaptive motion smoothness (e.g. S20 series, S20FE, TabS7/S7+) with the ability to set the brightness threshold for its activation***

    • Quick-doze mod: Quickly enter doze mode during screen-off that can not be interrupted by motion ***

    • Set minimum refresh rate for adaptive mode to 60hz or lower (if available)***

    • Resolution switcher filter: Filter what screen resolutions to include for the resolution switcher QS tile.

    • Auto SENSORS OFF (experimental non-root workaround):
      Device sensors will automatically turn off while screen is off until the device is unlocked. This helps minimize battery-draining motion-triggered wakelocks.

    • Statusbar net speed indicator

    • 7-day Premium Trial is available. Just click "Activate Premium|Trial" button and activate free trial when prompted.

      Note: Ad-free license is on a per device basis.

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

    Download link, FAQs and more info in Original xda thread
    V6.50 is up!:)


    - Fixed high mode not working on some S21/N20U devices
    - Show real-time refresh rate in notification and/or overlay
    - Added some language support
    - Improve notifications
    - App power consumption improvement
    - Ad-free trial added
    - Stability and other improvements

    After the Snapdragon Ultra (G9980) of my S21 was updated to the UB7 version yesterday, the adaptive mode of the Galaxy Hz Max (v6.61.10) showed 48Hz in the position (not touching the screen). Maybe the S21 series UB7 version firmware in the Greater China region has opened the panel that adapts to 10Hz?