OnStart is a free Android application developed by 3nus under the Utilities & Tools category. It allows users to auto-start any installed app after a device's boot. The app is straightforward and easy to use. Users can select any installed app and set it to auto-restart after a reboot without needing root access.

One of the best features of OnStart is that it does not use any system resources after starting the selected app. It does not run any service on the device, check or report anything, or use any CPU or memory. This makes it a lightweight and efficient app. OnStart can also be used to restart Kodi (XMBC) after a restart.

However, there is a known issue with some Android 6.x devices, but users can contact the developer at for any issue. Overall, OnStart is a useful app for users who want to automate the startup process of their favorite apps after a device's boot.