A free app for Android, by JK.Fantasy.

Magnifier Camera – Magnifying Glass & Flashlight is a handy and easy-to-use application that allows you to view things that are difficult to see.

You can use this app as a magnifying glass or a magnifier lens. 

When you start the application, it will set the zoom value to the middle. You can use the zoom slider to adjust the zoom level.

The magnifier lens has an on-screen magnifying glass and an adjustable zoom level. You can also zoom in and out using two fingers on the screen.

The application has an auto-focus mode that allows you to focus automatically. If the lens does not focus, you can use the manual focus mode.

When the lens is focused, you can see a magnified view of the object. The magnified view can be seen on the screen or in the viewfinder.