TetherSetting is a free tethering app for Android devices that allows users to share their mobile internet connection with other devices. This app can be used without rooting the device, provided that it is compatible. It offers the ability to set up a SSID and password, with encryption by WPA/WPA2. If no password is set, it can be connected without attestation. The list of supported devices can be found in the README file on the developer's GitHub page.

It is important to note that the developer is not responsible for any damage caused by the use of this app. Also, it does not support home widgets. The app is distributed under the Apache License 2.0. Overall, TetherSetting is a great option for those looking for a free tethering app that is easy to set up and use, as long as their device is compatible.