Prime Number Counter is an Android application developed by FunCoolApps. This free app is designed for people who love to watch prime numbers. It shows a nice counter with a prime number, and when you click the red button, the counter animates to the next prime number. The app is created to imitate the Primer physical devices shown in this Numberphile video.

The app is straightforward and easy to use. It is an excellent tool to learn and understand prime numbers. The app's interface is simple, and the app runs smoothly without any glitches. The best part of the app is that it is free to use, and you can enjoy watching prime numbers without any interruption. Overall, Prime Number Counter is an excellent app for anyone who loves prime numbers and wants to have fun while learning about them.