xGeometry is a free Android app developed by MatrixTeo that solves geometry problems step by step. It is an excellent tool for elementary and middle school students who want to learn the concepts of geometry in an interactive way. The app has a gesture feature that allows you to add new data directly on the shape, making it easy to customize the problem.

One of the best features of xGeometry is that it always finds the shortest solution to the problem. You can add multiple shapes to the same problem and explore them by resizing or rotating them. The editor supports various types of data such as segments, perimeters, areas, fractions, equalities, and special angles. However, an internet connection is required to use this app.

Overall, xGeometry is a great app for students who want to learn geometry in a fun and interactive way. It is easy to use and provides step-by-step solutions to problems.