How does Kairo track calories?

Kairo uses advanced AI to analyze photos of your food and automatically calculate calories and macronutrients. Simply take a photo of your meal, and Kairo does the rest.

Is Kairo available on Android?

Currently, Kairo is exclusively available for iOS devices. We are working on an Android version for the future.

How much does Kairo cost?

Kairo offers a yearly subscription with a 3-day free trial, as well as a monthly subscription. You can test all features during the trial and cancel anytime before it ends.

Does Kairo work with Apple Health?

Yes, Kairo fully integrates with Apple Health to sync your nutrition data and provide a comprehensive health overview.

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.

All Articles

Calorie Tracking

5 articles about Calorie Tracking

Calorie Tracking6 min read

How Many Calories Should You Eat Per Day?

The one-size-fits-all numbers are useless. Here is how to calculate your actual daily calorie target, by goal and body — with concrete examples.

June 4, 2026

Calorie Tracking8 min read

The Best Calorie Tracking Apps in 2026: An Honest Comparison

A clear-eyed look at the leading calorie-tracking apps — MyFitnessPal, Lose It, Cronometer, Lifesum, Kairo — including who each one is actually right for.

June 2, 2026

Calorie Tracking7 min read

Calorie Tracking for Beginners: How to Start the Right Way

The beginner's guide to calorie tracking. A step-by-step walkthrough with practical tips and the best tools for getting started.

April 25, 2026

Calorie Tracking8 min read

How to Calculate Your Calorie Deficit: A Science-Based Guide

Learn how to calculate your calorie deficit correctly using the Mifflin-St Jeor equation, activity multipliers, and practical tips for sustainable fat loss.

April 20, 2026

Guide

Calorie Tracking15 min read

The Complete Guide to Calorie Tracking

Everything you need to know about calorie tracking: methods, tips, common mistakes, and how AI is revolutionizing nutrition tracking.

April 15, 2026