Branah Keyboard is a newer app that types Farsi and 96 other languages in one keyboard. The same Farsi layout is there with word suggestions and the full emoji picker. Get it at https://play.google.com/store/apps/details?id=com.branah.ime

An easy to use keyboard app for Farsi
Emoji is supported
Watch the instruction video on how to setup the app https://youtu.be/1hbyvVmvIlQ
Visit https://www.branah.com/farsi to learn how to use the input method
Word suggestion is not supported