A new way to log and analyse your sport life. Run, swim & bike — open-source, ad-free, private by design.
GPS start/end zones are blurred and start times hidden on public views — computed server-side, never leaked to the client.
The whole platform is open-source and free to use, funded entirely by donations. No premium tier, no dark patterns.
Training load, heart-rate & power zones, laps, records and personalised guidance — from your own imported TCX sessions.
Import a session and Revontulet detects the sport, colour-codes it, and builds the right metrics — pace & cadence for running, power for cycling, pace-per-100 for swimming.
No subscriptions, no venture capital, no growth hacking. If Revontulet helps your training, a donation keeps the lights — and the aurora — on.