Support, bug reports, feature ideas, privacy questions, and press — all to the same address.
Try This First
Most reports come down to one of these, and checking takes a minute:
- Splitting stems fails the first time. The first split downloads the separation model (about 79 MB), so it needs a network connection that one time. Check you are online and try again; after that it works offline.
- RECORD doesn't pick anything up. If microphone permission was declined, allow the microphone for Chopmatic in your device's settings, then try again.
- The pads don't answer my MIDI controller. Notes from C1 up play the pads; if your controller sends a lower octave, shift it up. MIDI LEARN maps knobs and buttons.
- The plugin doesn't appear in my DAW. Open the Chopmatic app once first, then look again in your host's instrument list. The plugin is on iPad and Mac only.
- I can't find my exports. On iPhone and iPad they are in the Chopmatic folder in the Files app.
Support has more, including how each chop mode, the sequencer and the song work.
What to Include
If it is still broken, these five things turn a slow back-and-forth into one reply:
- Your device and OS version — for example “iPad Air, iPadOS 18” or “MacBook Pro, macOS 15”.
- The Chopmatic version, as the App Store or Google Play shows it.
- For the plugin, the host app and its version; for MIDI, the controller.
- What you did, what you expected, and what happened instead.
- A screenshot or short screen recording, if the problem is visual. For a problem with one file, the audio file itself helps — if you have the right to share it.
Your Privacy When You Write
We only ever see what you choose to put in the message. The app has no accounts, no analytics, no crash reports, and collects no data; its only network use is the one-time download of the stem-separation model. We keep your email for as long as it takes to answer it. See the Privacy Policy for the full picture, and the Terms of Use for what the app does and does not promise.
An Independent App
Chopmatic is an independent app. For problems with another app or instrument you use alongside it — a host, a sampler, a controller — please contact its maker.