CourtOS: Volleyball Tracker
Rotations, Subs & Stats
About
This app acts as a sideline command center for volleyball coaches, automatically tracking rotations, alerting for substitutions, and managing libero rules. It also compiles real-time player and team statistics, including rotation analytics and season trends. Works offline and is designed for all levels of play.
What's New in CourtOS
1.0.3
October 3, 2026
Stats is officially out of Beta — fully supported and ready for game day. New: - Match History now shows a per-set stat breakdown for each player, not just match totals - You can now edit the opponent name on a saved match from Match History Improved: - Added warnings before discarding unsaved lineup changes — whether you're loading a different lineup, starting a new one, or starting a match with edits still unsaved - Auto Arrange is now blocked during a live match to prevent accidentally resetting your court - CourtOS now flags it when a Libero or Defensive Specialist is placed in the front row - AI Match Summary now generates automatically the moment your match ends — no extra taps - Added a close button to the New Match quick start screen Fixed: - Fixed a rare issue where previewing a rotation and then closing or backgrounding the app could leave a live match in the wrong rotation - Deleting a player from the roster no longer risks losing that player's recorded stats - Fixed serve attempts not always being recorded in stats Thanks for coaching with CourtOS — keep the feedback coming.
MoreFAQ
Does CourtOS have ads?
No, CourtOS is ad-free, allowing coaches to focus on the game without interruptions.
What devices does CourtOS support?
CourtOS is currently supported on iPhone devices.
How often is CourtOS updated?
The latest version, 1.0.3, was released on October 3, 2026, indicating regular updates to improve functionality and address user feedback.
What is the age rating for CourtOS?
CourtOS has an age rating of 4+, making it suitable for coaches of all ages.
Can CourtOS be used without an internet connection?
Yes, CourtOS works offline, which is ideal for gyms that may not have reliable Wi-Fi or cellular service.
What kind of statistics does CourtOS track?
CourtOS tracks kills, aces, errors, digs, and passing statistics per player and per set, along with team totals and rotation analytics.
How does CourtOS help with substitutions?
CourtOS provides timely alerts for substitutions, ensuring that libero, DS, and setter rotations are managed correctly and legally.
What makes CourtOS unique compared to other coaching tools?
CourtOS is built by a coach and offers automated rotation advancement, real-time stats, and substitution alerts, eliminating the need for manual tracking with clipboards or spreadsheets.
