Dr.Light is a fun, easy-to-use app for making light drawings on your Android smartphone or tablet. It works with any device that has a front camera, and you don't need any additional hardware. Just download Dr.Light from the Google Play Store, and you're ready to go.

How to use it?

The first thing you need to do is set up your device. This app will work with any camera that has a slow shutter speed. So, be sure that your camera has a slow shutter speed.

After you have set up your device, you need to launch this app.

You will see a menu on the left side of the screen. There are several options that you can use.