KAI: AI Nutrition & Fitness
Weight Loss Coach & Meal Plans
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
KAI 2.0, now in English: snap your meal, type it or just say it, and it's logged in one tap. Your coach handles your reminders and checks back in at the agreed time.
Your personal nutrition & fitness coach, in your pocket day and night. An AI that knows you, acts for you and adjusts your plan with you every week.
Lose weight, build muscle, get fitter or healthier, without a strict diet. You ask, your coach acts, you confirm in one tap.
IN YOUR POCKET, DAY AND NIGHT
• Snap, type or say your meal: calories and macros estimated, portions adjustable.
• A workout done, your weight, water, measurements, a reminder, a recipe, a grocery list: just ask.
• It fixes an entry, takes you to the right screen and checks back in at the agreed time.
• Voice mode: a real hands-free call with live subtitles. Your coach answers in its own voice.
• Nova, Auro or Sense: yours is matched to your profile and your goal.
A REAL CHECK-IN, EVERY WEEK
• On the day you choose: weight, measurements, how your workouts felt, a progress photo. Steps and sleep pre-filled from Apple Health.
• Your real week, played back as a short story. Weight goal? Your estimated goal date is revised from your actual progress.
• Your coach suggests changes to your plan. Nothing changes until you apply them.
EAT HEALTHY, WITHOUT THE HASSLE
• A meal plan for your goal and tastes, with several options per meal. Vegetarian or vegan too.
• Recipes for whatever you're craving, fitted into your plan. Yes, even a fondue.
• Your grocery list for the week, sorted by aisle, to check off in the store.
AT THE GYM OR AT HOME
• A program for your level, equipment and schedule, or import your own.
• Live workout tracker, set by set: weight, reps, RPE, rest timer, demo videos for many exercises and your progress since last time.
• Your form, analyzed: Movement Analysis (beta) turns a 2 to 15 second video into strengths and corrections. Indicative only: it does not replace a physiotherapist.
GOT A GOAL? LET'S GET READY.
10K, half or full marathon, trail run, triathlon, gran fondo… Set your date: with your KAI program, the My plan page maps out every week, in phases, counting down to race day.
YOUR RECOVERY, FINALLY CLEAR
• Your coach reads 7 days of sleep, HRV, resting heart rate, workouts and water, and tells you where you stand: Good shape, Keep an eye or Likely fatigue. A guide, not a diagnosis.
• KAI only reads Apple Health: your Apple Watch, or another watch, ring or band, must save its data there.
STRONGER TOGETHER
7-day duo challenges you complete together, with no winner. Reactions, workouts for two and shared grocery lists. Your weight and photos stay hidden unless you choose to share them.
ZERO MENTAL LOAD
• It knows you. See and edit what it remembers in "What your coach knows about you".
• Reminders handled on request, and a daily note from your coach.
• My KAI Day widget and a Live Activity for your workout on the Lock Screen (iOS 17.2 or later).
• In English, French or German: the app, your coach and its voice.
DESIGNED IN SWITZERLAND
Designed and developed in Neuchâtel by KAI Technologies SA.
SUBSCRIPTION
KAI is free to download. Your full nutrition and training plan, the live workout tracker, the weekly check-in, the Progress tab, voice mode and chat with your coach with no daily limit require an auto-renewing KAI Coaching subscription. Without a subscription, you can still use the dashboard, log meals by photo or text, track water, set reminders and send a few messages a day to your coach.
Payment is charged to your Apple Account. Your subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. Manage or cancel it at any time in your Apple Account settings.
Terms of Use: https://kaiswiss.com/en/cgu/
Privacy Policy: https://kaiswiss.com/en/confidentialite/
HEALTH
KAI does not replace medical advice. Calories and macros are estimates. If you have a health condition, take medication, are pregnant or have a history of eating disorders, talk to your doctor before changing your diet or activity levels.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
KAI 2.0: your AI coach doesn't just answer anymore. It gets things done for you.
• Voice mode (with KAI Coaching): call your coach hands-free, with live subtitles. It answers in its own voice and acts just as it does in the chat
• Your coach fixes an entry, manages your reminders and checks back in when you agreed
• It takes you to the right place in the app and shows you where to tap
• Rebuilt memory: your coach remembers your tastes, your limits and your routine, and you stay in control
• New chat and animated coaches: after each confirmation, your day at a glance (calories, macros, water, workout)
• Your daily notification is now written by your coach
• KAI now speaks English and German as well as French: the app, your coach and its voice
Also in KAI: the weekly check-in as a story, a plan in phases for your target event, 7-day recovery, Movement Analysis (beta), widgets and Live Activities.
Open KAI and ask your coach: "What can you do for me?"
The developer, KAI Technologies SA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Financial Info
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- KAI Technologies SA
- Size
- 105.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 2 more
- English, French, German
- Age Rating
18+
- 18+
- Frequent
Medical Treatment information
Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- KAI Swiss Coaching $199.99
- KAI Swiss Premium $74.99
- Copyright
- © 2026 KAI Swiss