Persian Calendar app info
Free and open-source Persian Calendar with Compass/Qibla and Athan, and Dari, Kurdish, Azeri, Pashto, Arabic, Gilaki and English support. Supports Gregorian and Islamic calendars support also.
Works with TalkBack accessibility feature of Android also.
https://github.com/persian-calendar/DroidPersianCalendar
Please note that permanent date notification bar can be easily disabled from preference. Also features an optional Athan player.