dee jay
Two decks, one crossfader, and your own music.
A DJ app for iPhone and iPad that plays two tracks at once, finds their BPM and key, and locks them together. Built to sit next to a real mixer — not to replace one.
Download on the App StoreComing soon
Your library, sorted the way DJs think.
Reads the music already on your iPhone, then sorts it by BPM or by key so the next track is a decision, not a search. Your Music app playlists show up as their own filters.
Analysis that takes its time.
BPM and key are worked out from the whole track, on your device, not guessed from the first few seconds. A number you can trust is worth more than a number you get instantly.
A channel each on your mixer.
Send deck A to USB 1-2 and deck B to USB 3-4, and each track lands on its own mixer channel with its own fader, EQ, cue and FX. Made for the Teenage Engineering EP-136 K.O. Sidekick, which has everything a mixer needs except a crossfader — so the app brings the crossfader.
Sync that knows when to refuse.
Match the tempo of two tracks with one tap, and the app keeps them locked with corrections too small to hear. If two tracks are too far apart to blend without sounding stretched, it says so instead of mangling them.
Calls don't stop the music.
A call rings over your set instead of killing it. Nothing is worse than the room going quiet because someone dialled your number.