iOS App by Tomocreate
KeyPulse
Know the BPM. Know the Key. Instantly.
Tap once. Your mic does the rest. BPM and harmonic key — right there on screen.
Professional analysis.
Built for the booth.
What It Does
Everything You Need.
Real-Time BPM Detection
Tap the mic button and KeyPulse analyzes the track playing around you. BPM displayed in under 3 seconds.
Classic Key Display
Shows the key in standard notation (Am, C, F#m…) — the format you already know from your library tags.
Harmonic Key (Camelot)
Instantly converts to Camelot Wheel notation (10A, 4B…) so you can mix in key without looking anything up.
Both Keys at Once
Classic and Camelot displayed simultaneously. No switching, no confusion — just the full picture.
Mic-Based Analysis
No file imports, no library syncing. Hold your phone up to the speaker. That's it.
DJ-First Design
Large, glanceable display built for dark booths. Read it in a second without breaking your flow.
How It Works
Three steps. That's it.
Listen
Hold your iPhone near any speaker or monitor.
Analyze
KeyPulse captures the audio and detects BPM and key in real time.
Play
See Classic key + Camelot notation on screen. Mix with confidence.
See It In Action
Built for the booth.
Ready to Analyze
Listening...
BPM & Key Result
Versatile by design
Not Just for
DJs.
Designed for the DJ booth. Surprisingly useful everywhere else.
Producers, musicians, music teachers, curious listeners — if you've ever wanted to know what key a song is in, KeyPulse answers instantly.
Ready?
Your next mix starts with the right key.
Available soon on the App Store.
KeyPulse is an independent app not affiliated with or endorsed by Apple Inc. or Mixed In Key LLC. App Store and iOS are trademarks of Apple Inc. The Camelot Wheel notation system is a trademark of Mixed In Key LLC. All product names and trademarks are property of their respective owners.