Random Timer Generator is a free Android app by OneUp App that allows you to create random countdown timers. With adjustable seconds, minutes, and hours, you can set a minimum and maximum time and let the app start a random timer somewhere between that range. This app is perfect for a variety of activities such as exercise, meditation, studying, games, and musical chairs.

The app is fully configurable, and you can set the timer duration from 0 seconds to 24 hours. Even if your screen is locked or you have another app open, the timer and alarm will still run properly. Additionally, you can enable or disable countdown noise options, show how much time is left while the random timer is going, and choose from different alarm noise options, go silent with vibrate-only option, or upload your own sounds/songs.