Logged automatically
Say it once and it lands in the right place: weight, meals, water, training, sleep. No forms to keep up with.
Product
The whole system.
One conversation.
Your side is one conversation. Behind it, the AI and your data do the work. This page is the story. Every function in detail is its own page.
AI Coach
A coach that acts. Not just chats.
Say it, confirm it, logged. Kata never writes to your data on its own: it proposes a card, you confirm with one tap, and the decision is recorded.
- Chat, voice, photo
Type it, speak it, or send a photo of your plate. Everyday words become structured entries.
- Knows all your data
It reads your recovery, training, nutrition, weight and phase before answering, and checks the web when facts matter.
- Lock in, or take it back
Kata proposes, you confirm with one tap. Saved the wrong thing? One tap unsaves it.
- Talk out loud
Hands free conversation, in Mégane's own voice, plus a note from her on a milestone and your week read aloud.
I weighed 101.6 and had a whey shake after training.
Good morning. That puts you 0.4 kg under your 7-day average, right on Cut pace. Recovery is at 72%, so today’s push session stands. Two entries ready for you:
Weight · Daily weigh-in101.6kg
SavedNutrition · Post-workoutWhey shake · 30 g protein
Lock-in modes
Manual or auto. You choose.
How much Kata may do on its own is a setting, not a surprise. Switch anytime.
Manual mode
Kata proposes a lock-in card for every entry. Nothing is saved until you confirm it with a tap. Full control, card by card.
Auto mode
Kata saves directly as you talk. Every action still lands in your decisions log, auditable and undoable with one tap.
Your data, on its own
It logs itself. You just look.
Everything you mention is logged for you and turns into charts and details you can open, add to and adjust. All of it stays one question away: ask in the chat, and Kata answers from your own data.
Charts and details
Your numbers become clean trends and detail views you can open, explore and adjust at any time.
Just ask
Everything is reachable in the chat. Ask what happened, what changed, or what to do next, and Kata knows.
Activity insights
See every activity broken out: which sessions, how often, the time each takes and totals over 7 and 30 days. Tap any past day to see and edit what you did.
Physique
See the change. Not just the number.
The scale is one line of the story. Guided progress photos capture the rest: same angles, same light, laid side by side so twelve weeks of work land in one glance. Saved privately on your device.
- Guided anglesFront, side, back: the app frames each shot so every photo compares cleanly.
- Before and afterAny two dates, side by side, next to the weight and protein trends behind them.
- Physique analysisAI reads your progress photos and trends together: coming first to Kata Unlimited.
In your data
Yours, and built to stay that way.
Everything above runs on data that lives on your phone, not on a server. Four things are true by construction, not by promise.
On your phone
Your logs, chats, photos and the coach's memory live on the device you use them on.
Sealed when it moves
The one backup we hold is encrypted on your device under a key we never receive.
Never sold
No ads, no reselling, no data brokers. There is no business here that needs it.
Only on your word
Nothing leaves your phone unless you ask for it, and it is encrypted when it does.
Everything it does
That was the story.
Here is the map.
A hundred small things you will actually use, in one app.
- Talk to your coach
- Log a meal by photo
- Say it out loud
- Scan a barcode
- Calories and macros
- Water that adds up
- A real workout player
- Sleep and sleep debt
- Recovery and HRV
- Your day score
- Trends that make sense
- Reopen any past day
- Supplement stacks
- Blood work, read for you
- Progress photos
- Measurements over time
- Trackers you choose
- Quit smoking, counted down
- A mind check-in
- A breathing pacer
- Apple Watch
- WHOOP and Apple Health
- Kata Duo
- Memory you can edit
FAQ
Fair questions, straight answers.
What is Kata, in one paragraph?
Kata is a personal health coach with a full system behind it. You talk: chat, voice, or a photo of your plate. The system does the rest: it logs weight, food, water, training, sleep and supplements, keeps your charts and streaks, remembers your decisions and plans your day around phase goals like Cut or Build. All of it lives on your device.
Do I still have to fill out forms and search food databases?
No. You say “weighed 101.6, whey shake after training” and Kata turns it into structured entries you confirm with one tap. Photos work too: point the camera at a plate and get a calorie and macro estimate. Classic quick-log buttons exist for the days you would rather tap than talk.
Is Kata a medical product?
No. Kata organizes your own health routine and offers general, AI-assisted coaching. It does not diagnose, treat or replace a doctor, physiotherapist or dietitian. For medical questions, see a professional; Kata will tell you the same.
Does Kata replace my trainer or my doctor?
No, and it does not try to. Kata is the daily layer: it carries a plan through the week, keeps the numbers honest and answers at 22:00 when nobody else does. A good trainer, physio or doctor stays exactly as valuable; many users bring their trainer’s program into Kata and let it hold them to it. For anything medical, see a professional; Kata will tell you the same.
What are phases?
A phase is your current goal, stated plainly: Cut, Build, or your own variant. The phase sets the targets (protein, water, training focus, bedtime), and every module and every coach answer works toward it. Change the phase, and the whole system re-aims.
How do I sign up and create my profile?
Kata is in early access. Join the waitlist with your email and confirm it: your place is held, and invites go out in order. Every friend who joins through your personal link moves you forward. When your invite arrives, creating your account and setting up your profile takes a few minutes.
Which languages does Kata speak, and where is it available?
Kata works worldwide, wherever you can reach the app. It understands and replies in the language you write in, and this site is available in English, German, French, Italian, Spanish and Swedish. Prices adapt to your region in CHF, EUR, USD or SEK.
How do I reach support?
Through the contact form, or by mail to contact@yourkata.com. A human reads every message and replies personally, usually within a day or two.
Talk to it.
Free during the launch phase, and it grows by invitation: earn 3 Months of Kata AI for every friend who joins, and give each friend 1 free Month.