Comparison

AI Calorie Tracker vs Athlen

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

AI Calorie Tracker

Effortlessly track your meals by simply taking a photo. This AI-powered app instantly identifies ingredients, calculates calories and macros, and visualizes their impact on your body's systems. Set personalized goals and connect with friends for added motivation.

Highlights
  • AI-powered photo meal scanning
  • Instant calorie and macro breakdown
  • Body Map nutrition visualization
  • Personalized goal setting
  • Track with friends feature
  • Apple Health and Watch integration
Features
Read full description

Welcome to Kairo β€” the AI calorie tracker built around how you actually eat. Snap a photo of your meal. Get calories, protein, carbs and fat in seconds. Kairo's AI recognizes every ingredient on your plate, even in complex homemade dishes or restaurant meals. No more searching food databases. No more typing ingredients one by one. Just point your camera and move on with your day. HOW IT WORKS 1. Tell us your goal β€” lose weight, build muscle, recomp, or maintain 2. Snap your meal β€” Kairo's AI scans it in under 3 seconds 3. See how your nutrition fuels every body system, not just a calorie count THE BODY MAP β€” ONLY IN KAIRO Every other tracker shows you numbers. Kairo shows you what those numbers mean for your body. The Body Map turns your daily nutrition into a clear picture of how each meal fuels six body systems: β€’ Brain β€” cognition, focus, and clarity β€’ Heart β€” cardiovascular health and energy β€’ Muscles β€” strength and recovery from training β€’ Bones β€” long-term skeletal health β€’ Digestion β€” gut balance and steady energy β€’ Immune System β€” daily defense and resilience Watch where you're nourishing and where you're missing β€” beyond a calorie count. AI FOOD SCANNER Point your camera at any meal and Kairo's AI does the work. It recognizes individual ingredients in seconds, breaks down full macros and key micronutrients, and works on home-cooked food, restaurant meals, and packaged products. Scan barcodes for groceries β€” and when product data is incomplete, AI fills in the missing macros automatically. BUILT AROUND YOU Get custom daily calorie and macro targets based on your body and your goal. Whether you're cutting hard, bulking up, on a recomp, or maintaining β€” Kairo adapts. Smart AI estimates learn how you eat. Fine-tune any prediction in seconds when you know better. TRACK WITH FRIENDS Create a group with friends or family. See what everyone's eating. React to meals with emojis. Cheer each other on. Accountability that actually works β€” without the diet-culture pressure. WORKS WITH YOUR AI ASSISTANT Connect Kairo to ChatGPT or Claude and ask about your nutrition β€” calories left today, protein this week, what to eat next. Your assistant can even log meals for you. STAY CONSISTENT β€’ Daily streaks to build the habit β€’ Smart meal reminders that don't nag β€’ Home Screen widgets β€” your macros at a glance β€’ Apple Health sync β€” calories, macros, weight, and burned energy β€’ Apple Watch app β€” log a meal from your wrist β€’ Progress photos β€” capture your change side by side KAIRO IS: β€’ A calorie counter and macro tracker, powered by AI β€’ A food diary that actually saves you time β€’ A barcode scanner with AI fallback for incomplete product data β€’ A nutrition coach that fits in your pocket β€’ A Body Map showing how nutrition supports brain, heart, muscles, bones, digestion, and immune health Built by a small indie team. Made for people who hate spreadsheets and want results. Snap your first meal and see the difference. Subscription required for unlimited AI scanning. Cancel anytime in App Store settings. Terms: https://kairocalories.com/terms Privacy: https://kairocalories.com/privacy

About

Athlen

Features
Read full description

Athlen helps you understand food faster and make better everyday decisions. Simply scan a product barcode to receive a clear, personalized Health Score tailored to your profile, goals, and dietary needs. Instead of only showing nutrition facts, Athlen explains why a product may fit your lifestyle β€” or what you should watch out for. Your goals, activity level, sport, allergies, intolerances, and other profile information are included in the evaluation to make insights more relevant to you. What Athlen offers β€’ Barcode scanner for food and drinks β€’ Personalized Health Score for scanned products β€’ Athlen AI with easy-to-understand explanations for scores, ingredients, and nutrition values β€’ Insights about sugar, protein, processing level, allergens, and potential watchouts β€’ Better product alternatives based on your profile β€’ Custom profiles for goals, sports, activity, allergies, and intolerances Some features, including barcode scanning and Athlen AI analysis, require an active subscription. Athlen is built for people who want to quickly understand which products fit their lifestyle best. Whether you want to eat more consciously, support your fitness goals, compare products, or simply gain more clarity while shopping β€” Athlen makes food information easier to understand and more personal. Athlen does not replace medical advice or the need to check product packaging. If you have allergies or intolerances, always verify ingredients and allergen information directly on the manufacturer’s packaging. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

AI Calorie Tracker4 screens
Athlen4 screens

Verdict

The call

The clearest difference is ads: Athlen at none against AI Calorie Tracker's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. AI Calorie Tracker sells 3 in-app purchases, starting at $3.99 per 7 days and Athlen sells 1 in-app purchase, starting at $33.99 per year. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Β· 7 level
AI Calorie Tracker versus Athlen: the parameters behind the verdict, then further details
ParameterAI Calorie TrackerAthlen
PriceFreeFree
Positive reviews81.8% of reviewsβ€”
Update frequencyEvery 9 daysβ€”
AdsYesNo β€” better
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS16.415.1 β€” better
Further details β€” not scored
Size105 MB46 MB
Age rating4+4+
DeveloperCentaurio UG (haftungsbeschrankt)Katharina Weiser

In-app purchases

3 purchases

AI Calorie Tracker

Subscriptions3
  • Kairo Unlimited Weekly$3.997 Days
  • Kairo Unlimited β€” 50% Off$22.991 Year
  • Kairo Unlimited Yearly3 Days trial$44.991 Year
1 purchases

Athlen

Subscriptions1
  • Athlen Pro3 Days trial$33.991 Year

Questions

Is AI Calorie Tracker free?
AI Calorie Tracker is free to download, with in-app purchases available.
Is Athlen free?
Athlen is free to download, with in-app purchases available.
Do AI Calorie Tracker or Athlen have ads?
AI Calorie Tracker shows ads; Athlen does not.

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