Tempi is a full-featured live BPM detection and beat tracking app. Think of it as a reverse metronome — instead of keeping time for you, it listens to the music, detects the tempo, and syncs to the beat, all in real time.

Whether you’re a musician, DJ, or VJ, Tempi gives you a live tempo tracker that follows along as you play, with remarkable accuracy across every genre.

New in v3: a dedicated DJ mode, BeatSync over Ableton Link, a track history graph, an audio visualizer, and more. Read the v3 announcement.

• Tempi listens to your music in real-time, whether you’re mixing tracks or playing live.
• Tempi reports the BPM (beats per minute) of your music with remarkable accuracy.
• When you’re done, Tempi lets you analyze the recording so that problem areas can be pinpointed and improved.
• Use Tap for Tempo to quickly get a BPM reading at any time.
• Switch themes for easy nighttime use, or whatever suits your style.
• BeatSync syncs lighting, VFX, and DJ controllers to the beat with Ableton Link.
• An iOS Live Activity lets you see the BPM on the Lock Screen and Dynamic Island while you play.
• An audio visualizer shows the frequency spectrum of the music in a beautiful dynamic style.
• DJ mode includes a Track History graph that shows set energy over time.