premium

The sessions are free. Making them yours is premium.

Free gives you the whole library and the whole method. Premium runs it through your pool length and your own CSS pace, so every interval carries a target time you can actually hold.

free forever

Generator

  • The full session generator, focus + distance
  • Over 120 sessions from real training weeks
  • Rest times on every line, never send-offs
  • The CSS calculator and the CSS test session
  • Load zones, glossary and notation
premium

Your pool, your pace

  • Your pool: every distance in 25 m or 50 m lengths
  • Your pace: CSS test → target time on every interval
  • Rest times scaled to your own speed, not an average
  • Your default distance and language remembered
  • Everything free stays free — premium only goes deeper
monthly
€ 6
yearly
€ 49
create a free account

Sign in first — your subscription is tied to your account, and your setup is saved either way.