Stuck? We'll get you mixing.
Start with the fixes below — they cover almost everything people write in about. If none of them land, email a human and you'll get a real answer.
Our support commitments
Target first reply to every email.
Full refund on Pro, no questions asked.
No sign-up, ever — email is the whole system.
Fix it yourself, in a minute
The six things that go wrong most often, and exactly what to do about each one.
The APK will not install
Android blocks sideloaded packages until you allow it. Open Settings → Apps → Special access → Install unknown apps, pick the browser or file manager you downloaded with, and switch it on. Then reopen the APK.
Audio crackles or drops out
Raise the audio buffer in Settings → Audio until the crackle stops, close background apps that hold the audio focus, and prefer wired output — Bluetooth adds latency no engine can remove.
My MIDI controller is not detected
Use a powered USB-OTG adapter — bus-powered controllers can exceed what a phone port supplies. Reconnect while DJSet is open, then check Settings → MIDI for the device in the enumeration list.
Tracks are missing from the library
Grant the audio and storage permissions on first launch, then run Settings → Library → Rescan. Files on an SD card need the card mounted before the scan starts.
My Pro license will not activate
Paste the whole key including the DJST- prefix and the dashes. Keys are case-insensitive but whitespace is not stripped from the middle — retype rather than pasting from a mail client that added a line break.
I never received my license key
Check the spam folder for the address you entered at checkout, then email support with the address you used. Keys are re-issuable — you never lose a purchase because an email bounced.
Talk to a person
No ticket portal, no chatbot, no account required. Pick the inbox that fits and write to it.
Product support
Install problems, audio glitches, MIDI mapping questions or anything that is not behaving the way this site says it should.
[email protected]Licensing & billing
Lost license key, a key that will not activate, or a refund request inside the 30-day window.
[email protected]Privacy requests
Ask what we hold about you, request a copy, or ask us to delete it. We answer every request, not just the ones we are legally obliged to.
[email protected]Legal & press
Terms questions, brand-asset usage, or anything that needs a paper trail.
[email protected]Answers elsewhere
A lot of questions already have a page of their own.
Install & FAQ
Step-by-step sideloading, system requirements and the six questions we get asked most.
READ THE FAQWhat it can do
Every deck, effect, pad and MIDI capability, plus the full technical specification table.
SEE FEATURESRefunds & licensing
How the lifetime key works, what the 30-day guarantee covers, and who owns your mixes.
READ THE TERMSStill stuck?
Send us what you tried and what your device is, and we'll take it from there.