Triathlon · Sprint to full Ironman
Your race has a date. Give it a plan.
Trivium lives with you from sign-up to start line. Pick a plan, generate one with AI, or build your own, then open it each morning for the session, the effort, and the reason for it.
Free account to start. Connect Strava or Polar from inside the app, or don't. The same plan opens in the browser and on your phone.
Above: a 16-week Ironman 70.3 block, week by week. Four builds, three recovery weeks, a two-week taper, one start line.
What you open
Open it, and today is already answered.
No dashboard to assemble, no widgets to arrange. Six things, in the order a training day actually needs them.
The session, not just its name
Sport, duration and a five-dot effort rating at a glance. Tap the card for the heart-rate band, a pace guide, the warm-up into main set into cool-down, and the one cue that matters today.
One tap on how you feel
Five options, wiped through to fresh. It takes the answer, keeps it on the session card, and gets out of the way. Change it whenever the day changes.
Next seven days, in order
Hours planned and how many sessions, then every day in sequence. Tap any of them for that session in the same detail as today's.
Where you are, honestly
Phase and week of that phase on every day, recovery weeks called out by name, and a month calendar coloured by sport with a text badge on each day, so it reads in grayscale too.
Fitness, projected against real
The 42-day load curve your plan projects, with the curve you are actually building drawn over it once a provider is connected. Weekly volume by sport, week, month or whole block.
Strava and Polar, both ways
Logged activities flow in and tick off the day they belong to. The plan travels with your account, so an edit in the browser is there on the phone.
Week 7 of 16, Tuesday
Most of a training block is this. Nobody watching, and a plan that still knows why you are out here.
Three ways in
Start the way that suits you.
The same engine sits behind all three. Switch between them whenever the block changes shape.
Start from a proven method
Periodized presets for every triathlon distance, sprint through full Ironman, or the training method of a world champion. Set your race date and the schedule fills in from today.
Generate one from your answers
A short questionnaire covering race, experience, hours, rest day and injuries returns a custom periodized plan. With Strava connected it reads your last eight weeks first, so the plan starts from what you are really doing.
Build your own
Lay out phases, weekly templates and tune-up races yourself, session by session, with the same engine checking the plan still holds together to race day.
After the plan
Then it trains with you.
The session in front of you
It opens on today: one session, one effort, one focus. The week and the road to race day sit below it, in that order.
Real progress, no spin
Phase and week tracking show exactly where you stand against race day, and estimated numbers say they are estimated. Real paces and real adherence, never a vanity metric.
Adapts to real efforts
Connect Strava or Polar and upcoming sessions adjust to what you actually did, including the workouts you missed and the ones you went too hard on.
Coverage
From a first sprint to a full Ironman.
Sign-up to start line
Ready when you are.
Set a race date and tomorrow morning the first session is waiting.
The mobile app is coming
Trivium runs in any browser today and installs to your home screen. The native mobile app is in build. Leave your email and we will tell you the day it lands.