A coach in your pocket that adapts to how you actually feel
VO3 is an AI sports scientist that builds and adjusts your endurance + strength plan around your real recovery data — every single day. No generic templates. Just the right session for today.
Adapts to your recovery
Max reads your HRV, resting heart rate and sleep each morning and tunes today's session — push when you're primed, back off when you're not.
Endurance + strength, together
Built for hybrid athletes. One intelligent plan that balances running, riding, swimming and lifting so they complement each other instead of competing.
A coach that talks back
Ask Max anything — why a session changed, how to pace a race, whether to train through a niggle — and get answers grounded in your own data.
Straight to your watch
Send any planned workout to your Garmin or Wahoo in one tap via intervals.icu. Train with structured targets, no manual entry.
How it works
Tell Max your goals
A 2-minute setup: your sports, schedule, event and starting fitness. Connect intervals.icu — it syncs your Garmin, Whoop, Strava and more — to bring in your history.
Get your adaptive plan
Max builds a periodised plan towards your goal — then reshapes it daily based on how recovered you are.
Train, sync, repeat
Do the session, push it to your device, log it automatically. Watch your fitness build on clear, jargon-free charts.
Why VO3 is different
Personalised, not templated
Most plans are fixed PDFs. VO3 rewrites your week around your actual recovery and life — automatically.
One plan for the whole athlete
Stop juggling a running app, a lifting app and a spreadsheet. Endurance and strength live in one coherent plan.
Decisions you can understand
Max explains every change in plain language and answers your questions — so you learn, not just follow.
Your data stays yours
Encrypted credentials, no selling your data, and one-tap export or delete whenever you want.
Ready to train smarter?
Join the alpha and let Max build your first adaptive plan in minutes.
Create your account