What you need
One iPhone or iPad, a phone tripod, and the free Varsity Score app from the App Store. That is the entire kit. No extra hardware, no separate scoreboard, no WiFi.
A tripod is strongly recommended for games longer than a few minutes — holding a phone steady for 90 minutes of play is not realistic. A basic $15–20 flexible tripod with a phone mount works fine. If you have both an iPhone and an iPad, use the iPad on the tripod as the camera and your iPhone as a remote — more on that in step four.

