MIDI Wrench

This app is so fantastic at what it does that I wish it was designed to do just a tad more because then it could really be the MIDI ‘Swiss army knife’ so to speak, not just a “wrench.” If you use your iOS device with any MIDI I/O especially multiple types simultaneously like hardware MIDI I/O via USB or bluetooth/Wi-Fi MIDI, virtual MIDI, various apps simultaneously that use MIDI this app is incredibly valuable because when something isn’t behaving the way you’re expect, getting to see in realtime line-by-line each MIDI command you can quickly figure out what’s actually going on and adjust that to meet goals. There’s a a few knobs (4) which have plenty of versatility in that you can configure them to any MIDI channel or CC desired , its a bit weird to me to see just a bit of that type of functionality - but in a way it makes total sense and I wouldnt’ wish them gone. I was hoping maybe it could work as a MIDI patchbay - it has this one feature which will “echo” all inputs to outputs but it says that’s meant for measuring latency (very cool) but it would only work for MIDI routing in the very specific cases. Great free app.

Is it possible to add options like (1) change the range of keys and (2) set the keys to different scales. It will be nice to control a vst on the desktop from the GarageBand with this app or similar set as an auv3 instrument. I am trying to use an iPad as a midi controller for the vst on a pc using Bluetooth midi. Thanks for creating a great simple app but maybe additional options can be sold as in app purchase.

I am using several midi compatible apps on my iPad. Each time I come back to my piano to do something, the first thing I do is power up my piano, turn on Bluetooth on my iPad, and open MIDI Wrench to reset the iPad connection with my piano's MD-BT01 Bluetooth adapter. It works every time. I do see that this app does a lot more, but I don't need any feature other than making the connection. The only reason I am not giving this five stars is because, if I take a break (20-30 minutes?) without turning off either my Piano or my iPad (and my iPad is set to never auto-lock), I sometimes discover my connection has been disconnected. Then I have to reopen this app (still running in background) and reconnect. As long as this app is still running in the background, it should wake up often enough to keep that connection alive.