CourtOS: Volleyball Tracker

CourtOS is the all-in-one volleyball coaching app manage your roster, build lineups, run live rotations, and track match stats, all from your phone or tablet.

Built by a coach, for coaches. Whether you run a 12U club team or a competitive travel squad, CourtOS handles the busywork so you can focus on the match.

WHAT YOU CAN DO
- Build your roster in seconds — players, positions, and jersey numbers.
- Set your starting six with Auto-Arrange, or build your own lineup.
- Track rotations live — R1 through R6, auto-rotating on every sideout.
- Never miss a sub — automatic libero swaps, DS/RS subs, and sub alerts.
- Score in real time — tap to add points, log rallies, and record every stat.
- See what's working — kills, digs, blocks, aces, passing and hitting %, and more.
- Review the whole match — box scores, point maps, and rotation performance.

SMART ROTATIONS
CourtOS knows the rules so you don't have to. It tracks the overlap rule, libero eligibility, and legal positioning, and shows exactly where every player belongs — in any rotation, in 5-1, 6-2, or 4-2.

LEARN THE GAME
New to rotations? The built-in Academy teaches positions, systems, and rotations with interactive court diagrams generated from the real rotation engine — so what you learn matches what you coach.

BUILT FOR MATCH DAY
Fast, one-handed scoring. A clear scoreboard. Works on phone and tablet. Designed to keep up with a live match.

Start free — coach smarter with CourtOS.