几何计算器 is a free iPhone application developed by 威 刘. It falls under the category of Utilities & Tools and provides a wide range of geometric calculations. With a variety of pre-built geometric models and the ability to customize formulas, this app allows users to solve for unknown variables by inputting known data.

The app covers both plane geometry and solid geometry calculations, including commonly used shapes such as triangles, arcs, ellipses, frustums, and cones. It also offers a vast collection of formulas for calculating area, volume, length, and angles, making geometric calculations quick and efficient.

In addition to its geometry capabilities, 几何计算器 also features a complete scientific calculator, catering to various computational needs. With its user-friendly interface and comprehensive functionalities, this app is a valuable tool for anyone in need of geometry calculations on their iPhone.