Support
Email support@onlylinestennis.com. In the beta you can also take a screenshot in the app; TestFlight offers to send it to us with a comment.
Setting up the phone
Put it behind the baseline, in the middle, as high as you can (the top of the fence works), with the whole court in view. The app's Setup tab has the details.
Points and rallies
Score on your Apple Watch, or tap Point after each one, and the app lists your points. Tap one to watch it, then use Next and Previous. Without a watch, the app lists the rallies it hears in the video.
Cloud backup
Sign in under Settings › Account. Sessions back up by themselves on Wi-Fi, up to 30 hours of video a month during the beta. Sign in on a new phone and your sessions come back.
Deleting your account
Settings › Account › Delete account. It deletes your account and all your cloud files immediately. Videos on your phone stay on your phone.