Geometry 2.0 is an excellent and free visual geometry calculator for Android users. Developed by Igor Lyakshev, it is a great utility tool that calculates sides, angles, heights, perimeter, area, and volume. The app comes with imperial (yrd, ft, in, fractions) and metric (m, cm, mm) measurements, making it easy for users to switch between the two.

The app has two main categories, Planimetry, and Stereometry. Under Planimetry, users can calculate the measurements of various shapes such as triangles, squares, rectangles, circles, and ellipses. Stereometry allows users to calculate the measurements of 3D shapes such as spheres, cubes, cylinders, cones, pyramids, and octahedrons. The next update will include formulas for better understanding.

The app is easy to use with a simple and straightforward interface. It's a great tool for students, teachers, engineers, and architects to quickly calculate measurements on the go. The app also allows users to report bugs by sending an email to Overall, Geometry 2.0 is a must-have app for anyone in need of an accurate and efficient geometry calculator.