A free app for Android, by Ookla.

The Speedtest by Ookla app is a must-have tool for anyone who wants to find out the current speed of their internet connection. Not only does it give you a general idea of the performance, but it also allows you to find out more details, such as the speed, type of network, and coverage.

To use the app, you first need to install it on your device. Once you have done that, you can start using it. It is very simple to use, and all you need to do is open the app, and it will then start testing your connection.