The Drum Tuning Calculator by Overtone Labs Inc. is a free Android app that helps drummers achieve their perfect sound. The app functions as a tool for use with the tune-bot drum tuner. It helps users determine the notes and frequencies needed to reach their desired sound. Based on personal preferences, drum type, and other factors, the app provides recommended settings for tuning. The calculator includes a Drum-Set, Snare Drum, Bass Drum, and Single-Tom calculator. It also allows users to store and recall multiple drum sets. The app features pro tunings from various tune-bot artists, a tuning guide, and tuning videos.

The app is easy to use and provides accurate and relevant information for tuning drums. The ability to save and recall pitches of all drums is a handy feature that eliminates guesswork and saves time. However, it is important to note that this app is not a drum tuner; it is intended to be used with the tune-bot drum tuner. Overall, the Drum Tuning Calculator is a valuable tool for any drummer who wants to achieve a professional sound.