oREC is a very simple but useful and fun utility for synchronized, multi-track audio creation and collaboration. Here's how it works: * You record a track. * Then record another track; the first one plays along as you do, letting you record in sync with it. * Record as many tracks as you like. * Color-code them in whatever way suits your needs. * Use oREC as a personal tool for experimenting with multi-track recordings without any need for a sign in. * But if you do Sign in with Apple, you can pass the mic to collaborate with any other oREC user whose username you know! A few important notes: 1. Headphones are necessary for multi-track recording, because audio plays while you are recording with oREC. 2. Wired headphones are necessary for multi-track recording with oREC, because of the latency or "lag" inherent in Bluetooth and other wireless technologies.