A free app for Android, by Wanam.
This application lets you enable your local language on your device. The app supports several languages that are currently in the system, including Arabic, Chinese, English, Spanish, French, Hebrew, and many more.
You will not need to change any settings, and the app will work just like it does on your device.
The app does not require root access, and it is not a native Android application, so there are no issues with the compatibility.
This is a free, open-source application that is developed by a group of people who are passionate about the idea of enabling languages on devices.