---
title: "Kairo: AI Calorie Counter & Macro Tracker App"
description: "Kairo is the AI calorie counter app: snap a photo and your calories and macros are in the log 3 seconds later. Effortless food logging that fits your goals. 3 days free on the yearly plan."
canonical: https://kairocalories.com/en
last_updated: 2026-10-02
---

# Kairo: AI Calorie Counter & Macro Tracker App

> Kairo is the AI calorie counter app: snap a photo and your calories and macros are in the log 3 seconds later. Effortless food logging that fits your goals. 3 days free on the yearly plan.

Kairo is an iPhone app by Centaurio UG (haftungsbeschränkt), Germany. Take a photo of a meal and Kairo estimates calories, protein, carbs and fat. It also scans barcodes, syncs with Apple Health and ships in 7 languages.

- [Download on the App Store](https://apps.apple.com/app/id6756936526)
- [Pricing](https://kairocalories.com/en/pricing) ([markdown](https://kairocalories.com/pricing.md))
- [Accuracy benchmark](https://kairocalories.com/en/accuracy)
- [Help center](https://kairocalories.com/en/help)
- [About](https://kairocalories.com/en/about)
- [Contact](https://kairocalories.com/en/contact)

## Pricing

$3.99 per week or $44.99 per year in the United States; the yearly plan starts with a 3-day free trial. Barcode lookups and three AI analyses per account work without a subscription. Prices for other countries: [pricing.md](https://kairocalories.com/pricing.md).

## Free tools

- [Calorie calculator](https://kairocalories.com/en/tools/calorie-calculator) (Mifflin-St Jeor BMR, TDEE and target calories)
- [Macro calculator](https://kairocalories.com/en/tools/macro-calculator)
- [BMI calculator](https://kairocalories.com/en/tools/bmi-calculator)
- [Food database](https://kairocalories.com/en/foods)

## For AI agents

- MCP server: `https://mcp.kairocalories.com/mcp` (Streamable HTTP, OAuth 2.1 login with the user's Kairo account). [Server card](https://kairocalories.com/.well-known/mcp/server-card.json), [authentication guide](https://kairocalories.com/auth.md).
- [llms.txt](https://kairocalories.com/llms.txt) and [llms-full.txt](https://kairocalories.com/llms-full.txt)
- [Sitemap](https://kairocalories.com/sitemap.xml)

## FAQ

### 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.