Keep every device on the same counts. Coaches push routine updates, athletes always have the latest version, and nobody practices off an old copy.
Index-point updates a coach makes reach every athlete's device automatically — no more "did you get the new version?" texts.
Add coaches and athletes with an invite code or link. Seats are shared across the whole program.
Built around the same count-based index points the On Count app already uses for practice — nothing new to learn.