Kairn: AI Running Coach
What is Kairn?
AI running coach for road and trail races that builds training plans, course strategy and mental preparation.
Kairn is a Health & Fitness app that builds a training plan around a chosen race, from 10K to ultra-trail, combining running, strength and mental training. Its AI coach, Kai, adjusts the plan weekly based on form, schedule and watch data. The listing also describes course analysis, watch sync and a mental profile test.
Pricing. Kairn is free to download, with in-app purchases on the App Store.
Good for
- Preparing for a specific road or trail race
- Runners who want mental training alongside workouts
- Syncing sessions to an Apple Watch, COROS or Suunto
Screenshots
Why this app is in A tier
A tier follows from that score within this list. The full explanation, as data.
Kairn scores 81 out of 100: rating 97, rating count 55, App Store search rank 70, update recency 100. The four parts are averaged and A tier follows from that score within this list.
Description
Your AI running coach for trail and road, for your legs and your mind.
Kairn builds your training plan around your race, from 10K to ultra-trail: running, strength and mental training in one plan. Kai, your AI coach, adjusts it every week to your form, your schedule and your watch.
A PLAN BUILT FOR YOUR RACE
Pick your race, your goal and your priorities, then tell Kai how many runs a week you can fit in, on which days, and when you do your long run. Kai builds your program week by week up to race day: intervals, easy runs, long runs, hill work for the trail, paces set from your goal on the road.
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KAI READS YOUR COURSE
Map, elevation profile, hardest climbs and descents, aid stations: Kai spots what will cost you the most and prepares you for it. Set your target time and get your split at every aid station, with your margin on each cut-off. Race not in the app? Import its GPX.
RUNNING, STRENGTH AND MENTAL IN ONE PLAN
- Runs with clear blocks: warm-up, intervals, recovery, heart rate zones and paces
- Short strength sessions designed for runners, placed so they don't get in the way of your runs
- Mobility, cross-training and rest days
- Mental training in the same week: visualization, breathing, anchor phrases
- Mental cues in some runs, to put what you've trained into practice
YOUR SESSIONS ON YOUR WATCH
Send a run to your Apple Watch, COROS or Suunto in one tap and follow it block by block on your wrist. Your workouts, sleep and recovery come back to Kai from Apple Health, COROS, Suunto or Polar.
A PLAN THAT ADAPTS EVERY WEEK
Short nights, a busy week, a heatwave on Saturday: Kai reads your watch, listens to what you tell it and rewrites the sessions ahead. After each session, tell it how you felt. Change your rhythm anytime in your training preferences.
PLANNED VS DONE
Time, distance, elevation gain and pace, week after week: see what you planned and what you actually ran.
MENTAL PREPARATION, THE KAIRN DIFFERENCE
Your legs may be ready, but stress, doubt or a start that's too fast can ruin a race. Kairn trains your mind too, with short, practical exercises designed for runners:
- Manage pre-race stress
- Build your confidence
- Visualize the key moments of your race
- Master your start and your pace
- Stay focused when the effort gets hard
- Face doubt and the fear of cracking
- Debrief your race to keep improving
Take the mental profile test, designed with mental performance experts, to find your strengths and what to work on: confidence, focus, stress management, motivation and resilience.
KAI, ALWAYS BY YOUR SIDE
Write to Kai or send a voice message whenever you need to: a question about a session, a dip in motivation, pre-race nerves. Kai also checks in on its own at key moments and debriefs your runs with you.
Add your program to Apple Calendar or Google Calendar: every session on its date, updated whenever Kai adjusts your plan.
Kairn is free to download, with a free trial. A monthly or yearly Kairn Premium subscription unlocks the whole plan.
Kairn does not replace medical advice. Listen to your body: if anything hurts, stop and see a health professional.
Train your body. Train your mind. Run your best race.
Privacy policy: https://kairn.co/privacy-policy
Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Questions about Kairn
Is Kairn free to use?
The app is free to download and includes a free trial. The listing mentions a monthly or yearly Kairn Premium subscription and in-app purchases, but the subscription prices are not stated on the App Store excerpt provided.
Which races and devices does it support?
It covers races from 10K to ultra-trail, and it can send sessions to Apple Watch, COROS or Suunto. Workouts, sleep and recovery can be imported from Apple Health, COROS, Suunto or Polar. Races not in the app can be.
Does it include mental training?
Yes. The listing describes short mental exercises for pre-race stress, confidence, visualization, pacing and doubt, plus a mental profile test. These are placed in the same weekly plan as runs and strength sessions.
Is Kairn right for me?
Kairn is built for preparing for a specific road or trail race, runners who want mental training alongside workouts, syncing sessions to an apple watch, COROS or suunto. It sits in the mental coaching list on AppTierList.
Is Kairn worth it?
Kairn is A tier, ranked #4 of 8 mental coaching apps with a score of 81 out of 100, from a 4.9 App Store rating across 31 ratings. It is in the list's top tiers; 3 apps rank above it.
How does Kairn compare to Flow Lab?
Kairn is A tier at 81; Flow Lab is A tier at 82. Flow Lab ranks higher. Kairn is free to download, with in-app purchases, Flow Lab is free to download, with in-app purchases.
How often is Kairn updated?
Kairn was updated 3 days ago, which counts in its favour.
Alternatives
Top rated in Mental Coaching
Best free
Categories
All the facts
Ranking
- Lists
- Mental Coaching (A tier, #4) · Fitness Coaching (#121, beyond the tiered top)
- Tier
- A (Excellent)
- Score
- 81 / 100
- Rank in list
- #4 of 8
- Ranking certainty
- settled
Ratings
- App Store rating
- 4.9 out of 5, every App Store country
- Ratings
- 31
App
- Price
- Free + IAP
- App Store category
- Health & Fitness
- Current version
- (3 days ago)
- Size
- 89 MB
- Requires
- iOS 17.0 or later
- Age rating
- 4+
- Languages
- 24
- Runs on
- iPhone
Links
- Developer pages
- Support · Privacy policy
- Maker
- not verified
- As data
- JSON · why it ranks here
App Store data read · ranking