FlowCalculator is a productivity app developed by VAG-Group-DEV for Android devices. It enables quick and easy calculation of volumetric flow based on pipe diameter or flow velocity. The three-dimensional graphic representation of the values can be changed by tapping the screen with one or two fingers, or by tapping the corresponding numeric value.

The app also includes an independent unit converter that allows conversion of areas, dimensions, lengths, temperatures, frequencies, pressures, and performances. Users can choose between the metric and imperial systems of units. FlowCalculator is a free app that provides a convenient and efficient solution for flow calculations and unit conversions.