Midi Chief

Marcos Gennari Patroni

About this app

This app can control USB and Bluetooth MIDI devices. Important note: To use one or more USB MIDI devices, it is necessary to use an OTG cable or an OTG HUB connected to the cell phone's USB port. Multiple devices are supported.
It can be used by guitarists, keyboardists and all musicians who want to centralize the sending of MIDI control messages in a single device.

Ratings and reviews

Great app! July 7, 2025 Lots you need to know going in. If cable is not a data cable, phone and Tonex One will not connect. Once I got the right cable, they connected but I could not change patches with the app. I had latest firmware, but I updated it again through Tonex Editor PC software, and I connected the phone to the pedal with the app closed, and it seems to work! Double D guitar channel on YouTube does a lot of support, but no manual. I don't see any BPM on the pink tap button.

App is great but could not get it to work with ToneX Plug until I switched the output to BLE / data, reached out to developer twice with no response... some form would have been helpful.

Everytime I say "Yes" to the question "Would you like to use Midi devices" when I try to add my device to be controlled, the app crashes / closes without any further information. Since it's essential to use Midi devices, the app doesn't work for me at all. I use version 8.7. I tried it on two different Android phones - same on both.