The day starts with a chat
One line from Kata opens the morning: what today holds, and the one thing that matters most. No forms, no dashboards.
Personal Health Coach
Just talk.
The system
does the rest.
Tell Kata about your day by chat, by voice, or with a photo. It becomes your plan, your numbers and your next move. Yours alone, and it stays that way.
Feels like texting a coach.
Works like a complete system.
Made for the day
Your day becomes a ritual.
One short conversation carries the whole day. Behind it, Kata keeps your numbers, your memory and your plan in order, so you never have to.
One thread for the whole day
Wake, meals, training, sleep: whatever you mention lands on one timeline. Logging feels like talking, because it is.
Everything finds its place
Whatever you say and whatever you connect is remembered, sorted and charted. You lift nothing.
Intelligence that plans your day
The AI layer reads your recovery, sleep and training from WHOOP, Apple Health and Health Connect, then turns them into a few clear recommendations for today and, with Kata Plus, schedules the reminders that keep them on track. Refresh them any time.
The name
Practice the form. Become it.
In Japanese budo, a kata (型) is a form you repeat until it stops being effort and starts being you. Not another tracker to feed: a form for your day. The system holds it, you practice it.
- One form, dailyMorning stack to evening review: your whole day in one flow, not six apps.
- Phase-basedCut or Build set the targets. The system does the daily arithmetic.
- Repetition over motivationStreaks, routines and a day score that reward showing up, not perfection.
Inside Kata
You talk. Kata takes care of it.
Chat, voice or a photo. Kata handles the data and the tech behind it, so your side stays simple. Rather do it yourself? Switch to data mode and enter everything by hand.
You can also ask Kata anything about your data, at any moment, for any goal, whatever phase you are in. It knows all of it.
Honest comparison
Why not just ChatGPT & Co?
Fair question. General AI is brilliant, and tracking apps are thorough. Kata is what neither can be alone: a coach that knows your numbers, inside a system that remembers you.
| Capability | Kata | ChatGPT & Co | Food & fitness apps |
|---|---|---|---|
| Feels like a daily companion | Yes | Noa chat, when you open it | Partlyreminders, not care |
| Health memory, purpose-built | Yesyou see and shape it | Partlycan mix your life and data | No |
| Your words become real data | Yes | No | Partlyyou type the forms |
| One place for everything | Yes | No | Noone app per topic |
| Personal data, private by design | Yesonly in your profile, on your device | No | Partlyheld in their accounts |
They remember conversations. Kata keeps your health in order: one coach, your numbers, your day, saved only when you say so.
From daily practice
People keep telling us the same thing.
“When you are busy just dealing with life, the first thing you drop is yourself. I started paying attention again and ended up with five apps and five subscriptions. Now it is one place, it knows me, and what it reminds me about is my day, not someone else’s.”
“I work late and I work a lot. I tried the apps, then I built my own trackers with AI, and I was never consistent with any of it. This one sits in my pocket and holds the thread whether I open it or not.”
“I travel constantly and my routine used to fall apart every time. Now it does not matter where I am, or whether I logged anything while I was there. I can always catch up.”
“I took supplements for years without really tracking whether I took them. I never got to see what they did to my sleep or my training. Now I can see it.”
“It is genuinely surprising what comes out of just talking about your food, your drinking, your training and your supplements every day. The rest is handled, and it tells me what to change and why.”
“A coach I can just talk to while I am out, with my Apple Watch and my WHOOP feeding it. One place, and it reads the data back to me properly.”
“The combination of coaching and motivation is what got me. I went all the way in: put my blood work in, gave it everything the other tools already knew about me. It is finally in one place.”
Pricing
Free core. Two plans.
The core of Kata stays free, forever. Above it sit Kata Plus and Kata Unlimited, by the year or by the month. From 16 November every account starts with 30 days of Kata Plus, no card.
Kata Free
Free
Everything you track, free forever. Kata AI stays with you at starter volume.
- All tracking and trends: activity, food, water, sleep, supplements, mind, labs, cycle
- Scanner, your own reminders, backup, export and secured share
- Apple Health, Health Connect, WHOOP, watch app and widgets
- Your week in one picture, every week, and Sensei letters during launch
Kata Plus
$ 149per year
that is $ 12.42 a month
Kata in your pocket, every day.
- Kata AI at daily volume
- Kata voices and Talk, Mégane's first, 60 spoken replies a month
- Photo logging: meals, physique, documents
- Reminders Kata sets for you
- The written reading of your week, every week
Kata Unlimited
$ 299per year
that is $ 24.92 a month
The Sensei’s eye on your week, every week.
- The deep weekly reading: long form, across all your areas
- Unlimited Kata AI, fair use: past about 1,500 messages a month, replies come from the fast model and new photo readings wait until the next month
- Kata voices and Talk, Mégane's first, 400 spoken replies a month, fair use
- The earliest features, first
Currency
Yearly, bought here on the website: one month’s value off your first year, the 13th month on us.
Prices include VAT where applicable and follow your region. From 16 November every account starts with 30 days of Kata Plus, no card needed. Cancel any time, and pause a plan bought on the web; leaving a paid plan never touches your data.
Invite a friend
Earn 3 months. Give 1.
Kata grows by word of mouth, not by ads. Invite a friend and you both gain: 3 months of Kata Plus for you, up to 12 months a year, and 1 month of Kata Plus for them. While the launch phase is free, your invites already count, and the months you earn are honored.
Privacy
Your data is nobody’s business.
Your chats, your photos and your health story live on your device, not in a database of ours. Everything that travels is encrypted, and the one restore snapshot of the web app and the Android app is sealed with a key we never receive. No ads, no reselling, ever.
On your phone
Your story lives with you, not with us.
On the way
Everything travels encrypted, always.
With us
What runs your account: your email, your plan, your notification settings, usage counters, a daily heartbeat, a coarse sketch of your habits and what you choose to share. Never your logs, chats or photos in a form we can read.
Tracking & ads
No ads, and no ad networks following you around.
Selling data
Never. Your story is not for sale.
Your backup
On iPhone, Kata writes a backup file that your phone's own iCloud backup carries along, and on Android your own Google backup can carry Kata's backup files. Export a copy any time.
Built in Switzerland for people who take their health seriously.