Solving Pythagoras, developed by GSLstudios, is a free Android application that helps users calculate the edges of right-angled triangles with ease. The program uses the Pythagorean theorem to calculate the third edge when the values of two edges are input. The results of all calculations are stored in a history and can be shared. The app also supports fractions for input and offers the option to remove ads.

The user interface of Solving Pythagoras is simple and intuitive, with three fields for entering the values using a modified keyboard. If the user has not entered enough values, the text fields are highlighted in yellow, while invalid values are highlighted in red. The app allows users to switch between the solution view, input view, and history by swiping and/or touching the buttons. The entries in the history can be deleted or sorted manually, and selecting an entry in the history loads it automatically for calculation. Additionally, the entire history can be deleted by pressing a key.

Overall, Solving Pythagoras is a useful tool for anyone who needs to calculate the edges of right-angled triangles, and its history function and fraction support make it a standout option among similar apps.