Personal AI coach · now in beta
All your signals.One decision.
Kern reads your training, sleep, heart and calendar — and turns the complexity of your life into one clear next step.
iPhone · spots open gradually while we test with a small group.
No iPhone? Get updates by emailEverything changes.
Your body changes.
Your sleep changes.
Your calendar changes.
Your goals change.
But one thing remains.
Your core.
Why Kern exists
Data changes nothing.
Decisions do.
You already collect the signals — workouts, sleep, heart, calendar. Kern reads them all and turns them into one clear next step.
Not more information.
More clarity.
How Kern works
One day with Kern.
06:30
Observe
You wake up. Training, sleep, heart rate and calendar are already in — gathered automatically, all day.
07:00
Understand
Kern weighs load against recovery, and your goals against the week you actually have.
07:01
Recommend
You get one clear call: push, hold back, eat more, sleep earlier.
23:30
Improve
Kern checks what happened today — and gets a little more you.
↻ Repeats every day
That's it.
The app
Five screens. Zero noise.
Today
Your whole day, decided at a glance.
Coach
Rico answers with your numbers, not generic tips.
Training
Load that fits the week you’re having.
Recovery
Know when to push and when to rest.
Food
Macros that follow your training.
The Living Symbol
Constantly transforming.
Never losing itself.
Kern's mark is generated, not drawn — one continuous form with one open core, shifting endlessly within the rules that make it Kern. It never repeats, and it never becomes something else.
Just like you.
Six days of the same mark. All different. All Kern.
Our vision
AI shouldn't replace your decisions.
It should make them obvious.
We're still testing.
Kern is in beta on TestFlight and we're onboarding people gradually. Grab a spot on your iPhone — it's free while we test.
No iPhone, or just want updates?
Leave your email for test updates, early access, and a message when new spots open.