It was a reference from another rider at the base of Mt Washington, NH, that led us to this app, and its been great! It allows riders to connect via a wifi personal hotspot, which works regardless of how strong the cell phone connection is. My fellow adventure rider and I found that our bikes could be up to 50 feet apart and it would still work. Sometimes it would disconnect, but that's a fault of the wifi hotspot, not the app. I'm glad this app developer created this Infinite Intercom app, and I would recommend it to other people who need a way to communicate over short distances without the use of the cellular network.