Persian Soft Keyboard is an Android application that provides a soft keyboard for Persian (Farsi) language. It allows users to type in Persian on their Android devices. The app is free to use and is available on the Google Play Store.

To use the app, users need to go to the "Language & keyboard" menu under "Settings" and enable the Persian Soft Keyboard. Once enabled, users can switch to the Persian keyboard by long-pressing the edit field. The app also provides additional keys that can be accessed by long-pressing the keys.

The project is open-sourced, and the source code is available on GitHub. However, the app is obsolete now, and users are advised to use the Persian keyboard layout already included in the Google Keyboard. The newer Persian keyboard layout can be found under "Language & input" in the "Settings" menu.