An innovative new app that blocks anyone else from seeing your phone's screen or what you are doing

It is frustrating to be watching something inside your smartphone, and next to you there is someone watching everything you do and reading your messages, violating your privacy. In fact, the lack of privacy is often repeated in different social places, such as the bus, and using your phone is a way for information about you to be leaked that can sometimes cause you a lot of harm.
By using all the methods and techniques, you did not succeed, and you want to use your phone badly. In fact, there are currently many Android applications available with different ideas to prevent the person sitting in front of you from seeing what you are doing or part of it, including this free application that is the subject of our discussion today.
The Privacy Overlay app offers a nice idea to reduce privacy violations, and by the way, it does not require permissions that threaten your data or anything else; it is completely safe. You can darken your entire phone screen with an opacity percentage that you set, and you will be left with two shapes, either a rectangle or a circle that can be seen, which you will be able to see through and move to move to different corners of the screen.
You will download the application from the Google Play Store via the link below, and immediately after the download is complete, you will open the application. You will find it in the interface shown in the image, and you must first press the denied button, which you will most likely find in place of the granted button.
After pressing the button, you will be directed to authenticate the "Overlay Around Screen" validity.
Once you've completed authentication and are back in the app, you can start customizing. The circle feature makes the visible area a circle, while the ROW feature makes it a rectangle.
At the bottom, you can control the level and intensity of opacity (from transparent to dark black), and finally press the Stopped button to apply the changes and start using it.
Immediately you will notice a black screen forming on the phone, with the space that allows vision, and you can move it and use your phone in privacy while others are watching you.
Note: You can change the size of the shape (circle/rectangle) by long-clicking on it.
Download link: Privacy Overlay