Dreisatz is an all-new Android app by lifeguard media designed to help users calculate proportions with ease. The app allows users to freely choose their own units and calculates the results instantly. The app's primary function is to calculate proportions using the rule of three.

The app is particularly useful for those who need to calculate proportions for various projects, such as knitting projects, where the number of stitches needed to cover a certain distance must be calculated. With Dreisatz, users can quickly and easily calculate the number of stitches required for a given distance. The app is completely free and easy to use, making it a must-have for anyone who needs to calculate proportions on the go.