I have both systems, although I haven’t used shot scopes new phone app. The Arccos system is much easier to use because you don’t have to remember to touch the sensor on each shot. The fact that the app just records your shot automatically is much easier. I found that with shot scope I was having to recreate most of the round to make sure I recorded all shots. And then if you post rounds for handicap Arccos being connected to the Ghinn app makes posting seamless.