It’s ok but could easily be way better
There is absolutely no reason why this shouldn’t be compatible with an iPhone. Every competitor is and you already have the infrastructure from an iPad app. The biggest issue with this is the need for an ipad. Of the 5 members of my band, we only have one iPad which means we take turns dialing it in instead of everyone at once. If the iPad breaks or dies, we are screwed. Would probably be 4 stars with an iPhone/Android app.