Is it actually accurate?
16 of 16 test meals passed
We tested Kairo's AI against USDA and Open Food Facts. On branded products I was off by 3.5% on average, on unpackaged food by 10 to 12%. Every number is public.
See how we measuredOne photo
I'll count the rest
Eat like you always do
And finally know what's in it
No food scale, no digging through databases. Here's what your days look like with me.
Eat out without guessing
Restaurant, cafeteria, grandma's kitchen: snap it, keep eating. I'll handle the numbers.
Track without a food scale
I estimate the portion straight from the photo. If you know better, you can correct me in seconds.
See that it's working
Weight trend, macros and our streak in one place. Plus friends who keep you going.
The honest questions
And my answers
Why not just ask ChatGPT?
Because I look things up and keep count
I check branded products against nutrition databases like Open Food Facts. And everything goes straight into your day, counted against your goal. No retyping, no chat history you'll never find again.
And when you get it wrong?
Then tell me and I'll recalculate
Adjust the amount or just type what was different, like "a bit more cheese". Every meal shows how I got to the number.
How Kairo
works
Three steps. You do one of them.
Take a photo
Home-cooked, at a restaurant, or packaged. Anything goes.
I take a look
Kairo's AI reads the dish, the portion and the macros. In 3 seconds.
See results
Calories, protein, carbs, and fat at a glance.
Everything you need
Nothing that nags
Photo in, numbers out
You point, I do the rest: my AI reads the dish, the portion and the macros. In 3 seconds.
Body Map
See how your nutrition supports every body system.
Personal Goals
Optimal calorie and macro goals from your body data.
ProteinCarbsFat
Groups & Friends
Your friends see what you eat. And react. Sometimes brutally.
Our streak
One day without a log and it's gone. Just saying.
Barcode Scanner
Scan a barcode, get full nutrition instantly.
Home Screen Widgets
Your macros right on the home screen. So you can't talk your way out of it.
Apple HealthKit
Syncs calories and macros to Apple Health.
Invite Friends
You get something, they get something, I get company.
They're talking
about me
Really cool app
“In my eyes the app does exactly what it should. Easy to use, very clear visual layout. Not as sterile as comparable apps, and especially the little gadget with the cute kitty is always lovely to look at. The app really motivates me and gives me completely new insights into nutrition. Big praise to the developer. Please keep it up exactly like this! I can only recommend it to everyone.”
stromo1
App Store Review
Great app for calorie tracking and losing weight.
“The app is very clear and simply designed, so you find your way around quickly. The tracking works wonderfully and makes it easy to keep an overview of your daily nutrition. That also makes the app great for losing weight. I especially love the design with the cat. It’s lovingly made and motivates you on top. All in all an easy-to-use and highly recommendable app. 😊”
LefifaHansolo
App Store Review
Perfect app
“The little kitty is just super cute and brightens up my mornings! It makes the app so much more fun and motivates you in a lovely way. Simply a must-recommend.”
leonoptimal
App Store Review
Mega good!
“Awesome, modern and simple calorie tracking app”
Kaptain SH
App Store Review
Very good!
“Great app, fair prices, just works.”
Archeo3012
App Store Review
Great app
“Really great app for tracking calories.”
Pablobossking
App Store Review
4.5
App Store Rating
Frequently asked
questions
How does Kairo track calories?
Take a photo of your meal. Kairo recognizes what's on the plate and has the calories and macronutrients worked out 3 seconds later. That's all you have to do.
Is Kairo available on Android?
No, I only live on the iPhone. Android is on the list, but I'm not promising a date.
How much does Kairo cost?
Kairo offers a weekly and a yearly subscription, and the yearly plan comes with a 3-day free trial. You see the current price in the App Store before you buy, and you can cancel anytime in your iOS settings.
Does Kairo work with Apple Health?
Yes. Kairo syncs your nutrition data to Apple Health automatically, so your whole health picture lives in one place.
How many calories do I need per day?
Your daily calorie needs depend on factors like age, gender, weight, height, and activity level. Kairo automatically calculates your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) based on your profile using the scientifically recognized Mifflin-St Jeor equation.
What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is the number of calories your body burns at rest to maintain basic functions. TDEE (Total Daily Energy Expenditure) includes your BMR plus calories burned through physical activity and digestion. TDEE is the total number of calories you need per day.
What is the Body Map in Kairo?
The Body Map is a unique Kairo feature that shows you at a glance how your nutrition supports different body systems: brain, heart, muscles, bones, digestion, and skin & immune system. It provides personalized insights based on your daily food intake.
What makes Kairo different from other calorie trackers?
Kairo combines AI-powered food scanning with features like Body Map nutrition insights, social group tracking with emoji reactions, streak motivation systems, and beautiful iOS widgets. It focuses on simplicity and design while providing comprehensive nutrition tracking.
What is BMI and how is it calculated?
BMI (Body Mass Index) is calculated by dividing your weight in kilograms by your height in meters squared: BMI = weight / (height in m)². A BMI of 18.5-24.9 is considered normal weight. Note that BMI does not account for muscle mass or body composition.
Science-backed
Scientific formulas
Mifflin-St Jeor for your calorie calculation.
Official nutrition data
Sourced from DGE, USDA, and other official datasets.
GDPR data protection
Your health data, protected to EU standards.
