Through this app, you can send a donation to "tribalfs" on XDA—this is an excellent option for users who are unable to donate via PayPal. Donating also unlocks GMH's premium features on your specific device*, as offered by "tribalfs" on the XDA Developers forum.
For features and a detailed app description, please visit the Galaxy MaxHz GitHub repository and/or XDA. Galaxy Max Hz APK was developed primarily for Samsung devices.
What is Galaxy Max Hz APK?
The Galaxy Max Hz APK is a third-party Android application designed specifically for Samsung Galaxy smartphones featuring high refresh rate displays (90Hz, 120Hz, or 144Hz). It allows users to manually control and adjust their screen's refresh rate—a setting that is typically locked or restricted by the system.
Simply put, the app gives you greater control over how smooth your screen appears and how much battery power it consumes. You can select a specific refresh rate tailored to your needs—an option that Samsung does not always allow by default.
Before we dive into the details, a quick note: an APK (Android Package Kit) is a file format used to distribute and install applications on Android devices outside of the official Play Store.
Therefore, the term "Galaxy Max Hz" refers to a single installation file for the Galaxy MaxHz app, which can be manually installed after being downloaded from a trusted third-party source.

Galaxy Max Hz APK Highlights
- Adjust minimum and maximum refresh rates
- Switch between Adaptive mode and High (Fixed) refresh rate mode
- Set Adaptive or High refresh rate modes even when Power Saving mode is enabled
- (May not work on all devices running One UI 4.0 or higher; please test first)
- Change adaptive refresh rates on devices that do not natively support an Adaptive mode by default
- Configure distinct refresh rate settings for each app
Features of Galaxy Max Hz APK
These are some of the key features that make this app so valuable for Samsung Galaxy device users:
Refresh Rate Control
- Manually set your screen refresh rate to a fixed value, such as 60 Hz, 96 Hz, or 120 Hz.
- Prevent the automatic switching that typically occurs within the default system settings.
Adaptive Refresh Rate Automation
- Create custom rules that adjust the refresh rate based on specific apps or device activity.
- For example: 120 Hz for gaming, and 60 Hz for reading or watching videos.
Battery Optimization
- Lowering the refresh rate when it is not needed can significantly extend battery life.
- Helpful for users seeking the optimal balance between performance and efficiency.
App-Specific Settings
- Apply distinct refresh rate settings to individual apps.
- Enable smooth scrolling for social media apps, or battery-saving settings for static apps like Notes or Kindle.
Real-Time Refresh Rate Monitor
- Displays a floating overlay that allows you to monitor the current refresh rate in real time.
- Useful for developers and tech enthusiasts who wish to understand how apps function.
Root and ADB Options
- The app can be used without root access; however, certain advanced features work better—or exclusively—with ADB (Android Debug Bridge) or root access.

Conclusion
Galaxy Max Hz APK is a powerful tool for users who desire complete control over the refresh rate of their Samsung smartphones. Whether you aim to conserve battery life, achieve superior gaming performance, or simply enhance your overall user experience, this app offers features that are not available within the standard system.
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