Bilybyn is the mobile app for sports clubs and coaches: attendance, training load and every player's condition, tracked at every session.
Bilybyn helps coaches read effort, readiness and progress in every session, and turns daily information into decisions, not just data.
Log attendance and effort from the bench in under a minute. Review trends from your laptop later. No spreadsheet, no double entry.
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Right after training, each player rates how hard it felt from 1 to 10. Multiplied by duration, that becomes a training load in Arbitrary Units. It's the session-RPE method, validated across dozens of studies from grassroots to professional sport.
Rate of Perceived Exertion: how hard the session felt, from 1 to 10.
Training load = duration × RPE · e.g. 90 min × 7 = 630 AU
Optional Mindset, Application and Physical condition ratings turn a ten-second check-in into an early signal. Research on athlete self-reporting shows it's often more sensitive to short-term changes in fatigue and mood than objective measures alone.
Bilybyn plots attendance and load over weeks and months, per player and per team, so an unusual spike or a quiet fade stands out early enough to start a conversation, not just get noted after the fact.
Basketball is where Bilybyn started. The same session-RPE method applies to any collective sport.
