I’ve built an app that connects multiple phones together wirelessly and records audio with all of their microphones simultaneously. Once you finish recording all the recorded audio tracks are immediately available on all the phones for full-mix playback.
If you aim for the best, studio quality, you can attach any professional microphone to the phone, too.
Should be a nice tool for musicians/bands, podcasters, filmmakers. I’ve created it because I wanted to be able to record my band rehearsals. Handheld recording devices or single mobile phone did not cut it and studio space or equipment was not available or too expensive.
Recording with multiple microphones (multi-track recording) is how you typically record in a recording studio to achieve best quality. The app allows you to do just that but without expensive studio equipment (mixing console, audio interfaces, DAWs, computer, etc.). Also the time to get the full mix that you can play and share is cut almost to zero.