Screen Dimmer — Reduce flicker

REWHEX

About this app

This simple app can reduce eye strain and headache caused by PWM on OLED screens by replacing system brightness management with this app.

Features:
- Supported Android next to 14;
- Adjustable auto brightness/manual brightness modes;
- Customizable pixel filter to reduce screen burn-in;
- Customizable brightness bar notification and dim duration;
- Extra dim option;
- Always on display mode support;
- Option to take a screenshot without filter;

Note: This app will NOT cause your display to burn in. Display pixels are lighting on the same level as with the system brightness management.

1. I don’t understand whether there is an effect, my eyes get an eye strain/start to feel nauseous from the PWM:
- Application uses PWM of the maximum brightness of the phone, whether the application will help you or not - depends on the sensitivity of your eyes.
It is also possible that you disabled the application by changing the "minimum system brightness" setting, change it only if you know what you are doing! The standard value is 100%.

2. The application has stopped working, it seems to be turned on but there is no dimming:
- Go to Accessibility, turn Screen Dimmer off and on, then reactivate it in the application itself.
This is a security policy of the Android system that turns off the application every 2-3 days, this will stop over time.

3. In horizontal orientation, dimmer overlay does not flip/there is no dim on the sides of the screen
- Solution: same as point 2, or restart the phone.

4. Screenshots are dark if the application is enabled:
- It is necessary to take screenshots with a special button in the application, system gestures/buttons do not disable the application.

5. System bars/navigation or notifications are not dimmed:
Your system has ROM that has an additional security level enabled that does not allow a dimmer overlay to be displayed on top of the system panels.

6. How to control the brightness?/I want to change the brightness, but the system bar one always returns to 100%:
- You must control the brightness in the Screen Dimmer notification, the system brightness will always be at the level where the PWM is least.

7. Is my screen burning out? The brightness is always at maximum!, this probably drains the battery:
- Screen pixels lighting at the same level as they would with the system brightness, this application does not cause screen burn-in and does not drain the battery.

This app uses Accessibility permissions to dim the screen.

Contact us if you have any questions or suggestions by email:
[e-mail]

Ratings and reviews

Literally causing a visible flicker I've never seen before. Could be a great filter otherwise. ED: Well seeing as I've tried many different settings and other filter/brightness apps without EVER seeing a single flicker (let alone every 2 seconds) it definitely seems like the issue is not my device. Yet somehow it couldn't possibly be a glitch in the only app that has ever made a flicker visible🙄😒There is no room for improvement or progress if you refuse to consider that there may be a problem.

Great app to prevent PWM flickering, it works on lockscreen, status bar, basically everywhere. It even keeps stock "sunlight mode" untouched (just a little delayed). Unfortunately, the automatic control is very often unreliable - the screen randomly stays dim even outdoors (Xiaomi + Oppo phones). Also, I wish it had possibility to control with Tasker (disable/enable service, adjust brigthness etc.) and to define even brighter brighthness curve.

This app does it purpose, I really do love it cos it takes out the screen light with easy. It is the best I have seen on playstore. Please kindly include auto turn on and off in settings for next update. Regards.

What's new

Added guide section to answer common questions.