A free app for Android, by Crystal app studio.

Do you feel your smartphone is too bright at night?

Do you want to use your smartphone without having to strain your eyes?

Do you want to use your smartphone in a dimmer environment?

Are you tired of looking at your smartphone screen all night long?

If your answer is yes to all of these questions, then you should definitely download the Night Screen: Screen Filter app.

Why should you download the Night Screen: Screen Filter app?

There are several reasons why you should download this app. The first and most important reason is that it is free and it has no in-app purchases. The second reason is that it has an easy-to-use interface and it is very simple and straightforward to use. The third reason is that it has a very good user rating and reviews. The fourth reason is that it has an excellent support team that is always ready to help you with any questions or issues you may have. The fifth and last reason is that it has a very good documentation and it is very easy to use.

How to use the Night Screen: Screen Filter app?

The first thing you need to do is to download and install the app on your Android smartphone or tablet. The next thing you need to do is to start the app and select the screen you want to darken.