Fire Finger is a free Android app developed by Alyaka that allows you to simulate a realistic fire effect on your phone screen with up to 10 flaming fingers at once. The app is perfect for those who love playing with fire or want to try their hand at creating art with flames.

With Fire Finger, you can drag your fingers around to draw with your fire and use the menu to select different fire colors and more. The app is strangely addictive, and you can easily spend hours playing with it. It's a great way to show off what your phone can do and is perfect for Christmas fires or as a lighter at a concert.

Overall, Fire Finger is a fun and interactive app that lets you paint and draw with your own fingers on fire. While it may not be very useful, it's definitely 100% fun and worth trying out if you're a pyromaniac or just looking for a unique way to entertain yourself.