A coach that acts
Chat is the app. Say it, and Kata proposes a lock-in card you confirm with one tap. Undo is one tap too.
Functions
Everything it does.
The complete tour of the Kata app, function by function: what you say, what the system does, and what you get back.
The highlights
Nine things you will feel on day one.
Voice in, voice out
Talk instead of typing: transcribed, understood, logged. Replies can be read aloud in a voice you choose.
Photos become data
A photo of your plate becomes a protein and kcal estimate. Guided physique shots track the change the scale misses.
One day score
Sleep, training, nutrition, water and supplements roll into one live number with a daily line from Kata.
A real workout player
Guided sets with weight and reps prefilled from last session, equipment-matched proposals and progress charts per exercise.
Water that thinks
A daily target from your weight and training (35 ml/kg plus a workout bonus), a body-fill animation and streaks.
Motivation, personal
Encouragement shaped to you: your phase, your streaks, your wins. Kata nudges in the way that actually keeps you going, never a generic cheer.
Charts in the chat
Ask for your weight trend and get an interactive chart from your own numbers, right in the conversation and in Trends.
Private, properly
Your logs, chats, memory and photos live on your device. What you tell Kata stays with you, full stop.
The chat coach
Questions in. Decisions out.
Ask anything, log anything: Kata answers with your data in mind, proposes lock-in cards for food, weight, water, workouts, supplements, goals and memories, and saves only what you confirm. One tap saves, one tap undoes, and every decision lands in a log you can audit.
- Knows the whole picture
Recovery, training, nutrition, weight and phase are read before every answer, and it checks the web with cited links when facts matter.
- Adapts to you
It learns your shorthand and your rhythm: “the usual shake” means your shake.
- Scope-locked
A health coach, deliberately: it will not write your emails, and it will tell you to see a doctor when that is the right answer.
Getting started
Two ways to begin.
Start however suits you. Talk it through with Kata, or fill in a simple profile yourself. Either way you are set up in minutes, and everything stays editable later.
Start with the AI
A short conversation sets you up: Kata asks about your goal, your phase and your day, and builds your profile as you answer. Onboarding feels like a chat, because it is.
Enter it yourself
Prefer forms? Fill in a classic profile flow: your metrics, your goal, your training and your preferences, step by step, at your own pace.
Chat and data
Switch views any time.
Kata is a conversation and a full data app in one. Stay in the chat, or open the data view to see and edit everything directly, then switch back whenever you like.
Chat view
Talk, log and ask. Kata handles the structure behind your words.
Data view
Open the numbers directly: profile, entries, charts and history, all editable by hand.
One tap moves between them. Nothing is hidden in either place.
By area
Every area, in real detail.
Each part of your health works the same simple way: you mention it, Kata measures and charts it, and you can go as deep as you like.
Nutrition
Log meals by text or photo. Kata estimates protein and calories, holds them against your phase target and keeps a protein-first meter for the day.
Training
Sessions, sets, weights and reps in a real workout player, prefilled from last time, with strain and per-exercise progress tracked over weeks.
Water
A daily target from your weight and training load, 35 ml/kg plus a workout bonus. Log a glass in three words and watch the day fill.
Sleep
Hours, stages and sleep debt, from WHOOP or Apple Health or by hand. Kata reads how you slept before it plans your day.
Recovery
Recovery, HRV and resting heart rate arrive from your wearable and shape what Kata asks of you today.
Supplements
Morning and evening stacks with products and doses, one-tap take-all, intake times and a clean adherence chart.
Physique
Guided progress photos at the same angles and light, laid side by side, next to the weight and protein trends behind the change.
Trends & charts
Every number becomes an interactive chart from your own data: weight, protein, sleep, strain, water and adherence, in the chat and in Trends.
With all of that in one place, you can just ask: change your plan, check what happened, or get guidance from Kata, right in the chat.
Connections
Bring your wearables in.
Connect your devices and their data flows into your day on its own. Your own entries always win, and the connection stays on your device.
WHOOP
Connect your WHOOP and Kata reads your readiness: recovery, resting heart rate, HRV, sleep stages and strain sync overnight and shape today's plan. Anything you log by hand takes priority.
Apple Health
Sync steps, active energy, workouts, sleep and weight from Apple Health, or Health Connect on Android. Your day fills in on its own, and your manual entries always come first.
Kata AI
The intelligence is our own.
Kata AI is built for everyday health, not for everything. It runs on several large language models behind the scenes and adapts to you, developed for real routines, experience and personalization, making the complex parts disappear.
- Built for the everydayTuned for routines, phases and real life, not general chat. It keeps the hard parts out of sight and the simple part in front of you.
- Adaptive by designIt picks the right model for the moment and learns your shorthand, your rhythm and your goals over time.
- Knows you, privatelyYour data is stored only on your device and never sold. To coach you, your messages and context go to the AI just to generate the reply, and no one, including us, keeps your logs, chats or photos.
Everything else
The rest, still done properly.
iPhone and Android
Install the native Kata app on iOS and Android, with notifications, nudges and full-screen focus.
Web app
Use Kata as a web app on any computer: the same account and the same data, everywhere you are.
Manual and auto logging
Confirm every entry yourself, or let Kata log the obvious things on its own. A setting, not a surprise.
Decisions log
Every lock-in lands in a log you can read, edit and undo. Nothing changes without a trace.
Memory
Kata's memory of you is yours to inspect and adjust, so it always stays accurate.
Smart recommendations
Daily picks for training, food, sleep and supplements from your recovery and phase. Refresh anytime.
Day score & evening review
One live number for the day, a morning line from Kata and an evening review that closes it out.
Invite a friend
Invite by email or WhatsApp from the app: 3 Months of Kata for you, 1 Month for your friend.
Try them all.
Free during the launch phase, every function included. Set up in one conversation.