Imagine that special educational services such as online observation of the sky and online microscope along with more than 900 diverse skill courses in 49 branches of skill training and lessons, lessons and school experiments, online classes and webinars from beginner to expert level are available in one place on the application. be you And all this is available to you unlimitedly with just one "free" monthly subscription. This is Master App. In Master App, you can use the free or subscription courses and events of the app. Then, if you wish, get unlimited access to all educational content and various services of Ostad App with a "free" subscription.

- Ostad App offers the first online sky observation program, online microscopic observation and online laboratory.
- Ostad App covers more than 900 different skills and courses from beginner to expert level.