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Train Ultra

Private AI coach for endurance athletes

A private coach who reads every workout you log.

Train Ultra reads every activity the moment you finish, remembers your goals and history, and is always there to talk it through. What today meant, what to do next, why it felt the way it did.

See how it works

Free on the App Store · also on the web · connect Strava or Garmin in seconds

train ultra · coach
Easy 6 today felt way harder than it should have. Bit worried.
That tracks. It's your 4th day in a row, your HRV has sat under baseline for three days, and resting HR is up a touch. Nothing's wrong with your fitness. You're carrying fatigue. One genuinely easy day, or a full rest day, and it settles.

The coach

It's a conversation, not a dashboard.

Ask anything, any time. Your coach has read every mile you've logged, knows what you're training for, and pulls your real numbers into the answer. Like texting a coach who never forgets.

  • Remembers everything. Your goals, your history, and past conversations all carry forward.

  • Works from real data. It reaches into your actual splits, paces, and recovery trends before it answers.

  • Always on call. 2pm taper jitters or a 9pm "should I run tomorrow?", it's there.

train ultra · coach
Should I still do the long run tomorrow? Legs are pretty cooked.
Read your last 14 daysFair question. Your readiness is down (HRV under baseline two days running, resting HR up), and you've stacked real volume this week. Tomorrow's long run is the key session of the block, so I want to protect it. Keep tomorrow to 45 to 60 min very easy, run-walk if the legs feel flat, and push the long run to Sunday.
ok. what pace sunday?
Conversational the whole way. For you right now that's about 9:10 to 9:40/mi on flat ground, slower on the climbs. If you can't talk in full sentences, ease off.

Workout evaluations

Proof it's actually paying attention.

Seconds after you finish, your coach reads what actually happened. Pacing, effort, recovery, how it fits your plan. Then it can post the read straight to your Strava activity.

Posted to your Strava
Easy Aerobic Trail Run
8.4 mi11:02/mi138 bpm avg1,250 ft vert

This read as recovery, not training, and that was the right call. Heart rate sat well below your easy aerobic range and the splits drifted slower as you went, which says you were protecting tired legs, not chasing a stimulus. With HRV under baseline for a third straight day, that restraint is what this week needed. Tomorrow's easy 6 is already on the calendar. Keep it fully conversational, and if the legs feel flat after 15 minutes, make it a brisk hike. For a 100, absorbing the work beats adding junk miles.

How it works

Keep training the way you already do.

01
Connect Strava or Garmin

One tap. We read your activities so the coach works from your real training, and we never post anything to Strava without your say-so.

02
Your coach reads every workout

Seconds after you finish, it's analyzed. Pacing, effort, recovery, and how the session fits the bigger plan.

03
Talk it through

Ask what today meant, what's next, or why it felt hard. It remembers the answer the next time you ask.

Now on iPhone

Take your coach with you.

The full Train Ultra coach, native on iPhone and synced with the web. Every evaluation, your goals, your weekly summaries, and the chat. All of it, wherever the run takes you.

Free on the App Store · iPhone · iOS 17 or later

More in the toolkit

Everything the coach draws on.

Goal tracking

Tell it what you're training for and goal progress is woven into every evaluation and answer.

Weekly training summaries

A fitness headline every week. Volume, patterns, and where your training is actually heading.

Wellness data

Connect Garmin and the coach factors your sleep and recovery into what it tells you to do next.

See everything it does: planned-workout sync, wellness data, and more →

And one small delight

Oh, and your activity titles? Handled.

Every activity lands on Strava with a title that actually says what you did, written by the coach that watched it. It's the smallest thing Train Ultra does, and a quiet favorite.

Steep Uphill Trail Workout5.1 mi
Recovery Trail Shuffle4.0 mi
Easy Aerobic Long Trail Run18.2 mi

Your data, your call

We read only what we need to coach you.

What the coach writes is yours. Post it back to Strava automatically, keep it private, or choose per activity. We never sell your data or use it to train AI models, and you can disconnect in one tap, any time.

Start free

Your next workout deserves a coach.

Connect Strava or Garmin and meet a coach who reads every mile and remembers all of it.

No credit card · cancel any time