iPhone · iPad · Mac · Apple Watch
SUS4 BPM Tap
Tap the tempo, or let the mic find it. No messing around.

SUS4 BPM Tap tells you the tempo of whatever is playing. Tap along on the screen, let the app listen through the microphone, or load an audio file, and it gives you the BPM. No setup required.
Tap mode updates with every tap and uses the median of your recent taps, so one stray tap does not throw the reading, and the number holds on screen until you start again. Live detection listens continuously, updates about once a second and shows when it has locked on to a steady tempo. File analysis reads MP3, M4A and WAV files.
Available on iPhone, iPad, Mac and Apple Watch, where you can tap or listen from your wrist, SUS4 BPM Tap is the quickest way to answer the question that comes up constantly in writing and production sessions: what tempo is this thing actually running at? Save readings to a history, play a click at the detected tempo, or send it to SUS4 Setlist.
Available on
Goes well with
- SUS4 MetronomeSubdivision-aware metronome that keeps you honest.
- SUS4 Time TrainerTap to the click, then keep time when it drops out.
- SUS4 Loop BuilderRecord and stack loops on up to eight tracks until the groove locks in.
Made by a working recording studio
SUS4 is made by 4chordsStudios, a recording studio in a quiet UK village with a live room and a Dolby Atmos mixing room. We work with independent artists from the first session to release day and beyond.