Shutter Speed Calculator is an Android application developed by Shadab Shaikh that assists astrophotographers in calculating the maximum shutter speed for sharp stars. The app is free and falls under the Multimedia category with a subcategory of Photography.

In astrophotography, capturing sharp stars is crucial for bringing out details in the night sky. However, the earth's rotation causes stars to appear to move across the sky, making it challenging to use longer shutter speeds without the stars turning into streaks. The app uses the "500 rule" and "NPF rule" to calculate the maximum shutter speed needed to retain sharp stars. The NPF rule is a more sophisticated method that provides the best results.

It is important to note that this app does not capture photos but only assists in calculating the maximum shutter speed. The interface is simple and user-friendly, making it easy to use for photographers of all levels.

Overall, Shutter Speed Calculator is a useful tool for astrophotographers looking to capture sharp stars in their photos. It is free, easy to use, and provides accurate calculations to help users achieve their desired results.