If you're looking for a lightweight and practical Persian calendar app, look no further than تقویم ۹۹ فارسی - اذان گو اوقات. Developed by GeorgianDev, this free app is designed to keep you on track with all the important dates and events in the Persian calendar.

تقویم ۹۹ فارسی includes a comprehensive list of all holidays and important occasions for the yearYou can also easily convert dates between the Persian, Gregorian, and Lunar calendars. The app also features an advanced prayer time calculator that includes an adhan alert and Qibla compass.

In addition to its practical features, تقویم ۹۹ فارسی allows for advanced personalization, including customization of personal and work events. The app is also compatible with Google Calendar and is highly compact, making it easy to use on any Android device.