Explore what Rutz can do
Rutz is an AI running coach for iPhone. It writes your training plan one week at a time, reviews every run, answers your questions and keeps your training load in check.
Adaptive plan
Your plan. Your week.
Give Rutz your race and your date. It lays out the phases — base, build, peak, taper — then writes one week at a time from the runs you actually did.
- Built backwards from race day
- Rewritten every week from real training
- Missed runs absorbed, never crammed back in
Run analysis
Every run, explained.
Code does the math; your coach does the interpreting. Pacing, heart rate, efficiency and fatigue are computed from your data, then turned into a review you can read in thirty seconds.
- A written review after every run
- Segments, reps and grade-adjusted pace
- What it means for tomorrow
AI coach
Ask anything. Get a straight answer.
Should I race this weekend? Why was today so hard? Your coach has read your whole history, so the answer is about you — not runners in general.
- Chat that knows your training
- Plain language, no jargon
- Answers in your language
Load guard
Build without boiling over.
Most running injuries are training-load errors. Rutz tracks how much you're carrying and caps how fast it can climb, so ambition never outruns your legs.
- Week-to-week ramp ceilings
- Fitness, fatigue and form trends
- Easier weeks when you need them
Four steps
How it works
01
Join the waitlist
Rutz is in private beta on iPhone. Save your spot and we'll email you when it's your turn.
02
Set your goal
Tell us the race, the date and how many days you can run. First 5K or a marathon PB — both count.
03
Start training
Sign in with Intervals.icu. Your history loads, your first week lands, and every run after it gets a coach's read.
04
Show up ready
Each week is written from the last one. You get fitter, the plan gets sharper, race day gets closer.
Your next start line starts here
Rutz is in private beta on iPhone. Join the waitlist and we'll email you when it's your turn.
Join the waitlist