Best Free Macro Calculator Diet Apps

240+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated July 2026

Looking for free free macro calculator diet apps? 20 of our 240+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Free Macro Calculator Diet

Cronometer: Calorie Counter#1

Cronometer: Calorie Counter by Cronometer Software Inc

Nutrition, macro, diet tracker
Editor's Choice
💪 Health & Fitness
4.8😊(93K ratings)
FreeAdsIn-App Purchases
#13in Health & Fitness
Cronometer: Calorie Counter screenshot 1
Cronometer: Calorie Counter screenshot 2
Cronometer: Calorie Counter screenshot 3
Cronometer: Calorie Counter screenshot 4
Cronometer: Calorie Counter screenshot 5
Cronometer: Calorie Counter screenshot 6

Track your diet and exercise with an extensive food database and detailed nutrient breakdowns. Monitor progress towards health goals, integrate with fitness devices, and gain insights into sleep patterns. Offers premium features for enhanced tracking and an ad-free experience.

What We Love

  • 👍 Excellent functionality
  • 👍 Best tracker out there
  • 👍 Logging food is super simple
  • 👍 Easy to set up and use

Room to Improve

  • 🔒 Doesn't allow hiding email
  • 🐛 Widgets don't update properly
  • 🐛 Recipes don't always import correctly
MacroFactor - Macro Tracker#2

MacroFactor - Macro Tracker by Stronger By Science Technologies LLC

Calorie, Nutrition, Food, Diet
Strong Contender
💪 Health & Fitness
4.8😊(19K ratings)
FreeAdsIn-App Purchases
#10in Health & Fitness
MacroFactor - Macro Tracker screenshot 1
MacroFactor - Macro Tracker screenshot 2
MacroFactor - Macro Tracker screenshot 3
MacroFactor - Macro Tracker screenshot 4
MacroFactor - Macro Tracker screenshot 5
MacroFactor - Macro Tracker screenshot 6

This app uses a dynamic algorithm to adapt your calorie and macro targets based on your metabolism and progress. It offers tools for quick food logging, a verified database, and personalized coaching to help you achieve sustainable diet goals without stress or rigidity.

What We Love

  • 🚀 Easy to use
  • 🔍 Detailed analytics and data
  • 🤖 Intelligent algorithm adjustments
  • 👍 Flexible and customizable

Room to Improve

  • 🔍 Limited food database for some regions
  • 🤔 Steep learning curve for some users
  • 💰 Subscription-based model
Calorie Deficit Calculator#3

Calorie Deficit Calculator by Starry Web Ltd

Oatsy Macro Tracker Diet Coach
Worth Considering
💪 Health & Fitness
4.7😐(3.7K ratings)
FreeIn-App Purchases
Calorie Deficit Calculator screenshot 1
Calorie Deficit Calculator screenshot 2
Calorie Deficit Calculator screenshot 3
Calorie Deficit Calculator screenshot 4
Calorie Deficit Calculator screenshot 5
Calorie Deficit Calculator screenshot 6

This app helps you achieve your health and nutrition goals by tracking your food intake, water consumption, and exercise. It offers a comprehensive nutrition database, custom diet plans, and AI-powered food scanning to make logging easier.

What We Love

  • 🚀 Simple and easy to use
  • 👍 Helpful for tracking calories and macros
  • 🚀 Efficient barcode scanning
  • 👍 Integrates with Apple Health

Room to Improve

  • 🐛 Bugs and glitches with the app
  • 🔍 Limited food options, especially for cultural dishes
  • 🔍 Inaccurate macro calculations

More Free Macro Calculator Diet apps to explore

4
Carbon - Macro Coach & Tracker
Carbon - Macro Coach & Tracker
Carbon - Macro Coach & Tracker
Calories, Nutrition, & Diet
Free

This app provides personalized nutrition plans for weight loss, muscle gain, or maintenance. It adapts your plan as you progress and offers a comprehensive food tracker with a large database and barcode scanner. It supports various diet preferences and allows for custom meal planning.

Personalized nutrition plansAdaptive plan adjustmentsComprehensive food logging
💪 Health & Fitness
(7.9K)
free with in-app purchases
5
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Trifecta: Diet & Weight Loss
Calorie & Macro Tracker
Free

This app helps you achieve your health and fitness goals with personalized nutrition tracking, exercise guidance, and healthy recipes. It offers tools to calculate macros, log meals, scan barcodes, track water intake, and follow workout videos. Create a step-by-step program for sustainable habit building.

Macro calculator for personalized nutritionFood and nutrition loggingBarcode scanner for packaged foods
💪 Health & Fitness
(1.5K)
free with in-app purchases
6
Stupid Simple Keto Diet App
Stupid Simple Keto Diet App
Stupid Simple Keto Diet App
Low Carb Diet & Macros Manager
Free

This app helps you track carbs and calories to achieve weight loss and maintain a ketogenic lifestyle. It offers easy food logging, progress tracking, and support for custom foods and fasting. Certified diet coaches are also available.

Visual carb and calorie loggingBarcode scanner for food entryFasting support
💪 Health & Fitness
(8.9K)
free with in-app purchases
7
Keto Diet App: Keto Manager
Keto Diet App: Keto Manager
Keto Diet App: Keto Manager
Carb Cycle & Macro Tracker App
Free

This app simplifies low-carb and macro tracking for weight loss and diabetes management. It uses voice recognition for easy food logging, offers automatic nutrient calculation, and provides community support. Access recipes, meal plans, and health insights to support your diet.

Voice recognition for food loggingAutomatic macro and net carb calculatorLow-carb eating insights
💪 Health & Fitness
(9.4K)
free with in-app purchases
8
Keto Calculator - Keto Buddy
Keto Calculator - Keto Buddy
Keto Calculator - Keto Buddy
Keto/low carb macro calculator
Free

Calculate your ideal macronutrient intake for ketogenic and other low-carb diets. This free tool helps you determine the right balance of fat, protein, and carbohydrates based on your individual goals and needs.

Macronutrient calculationKetogenic diet supportLow-carb diet support
💪 Health & Fitness
(8.4K)
free
9
Carb Manager: Keto & Macro Log
Carb Manager: Keto & Macro Log
Carb Manager: Keto & Macro Log
Macro, Food & Calorie Counter
Free

Easily track carbs, macros, and calories for low-carb and keto diets. Features include barcode scanning, recipe access, and community support to help you achieve your health goals.

Net carb trackingBarcode scannerMacro calculator
💪 Health & Fitness
(73K)
freemium
10
MacrosFirst - Macro Tracker
MacrosFirst - Macro Tracker
MacrosFirst - Macro Tracker
Food Macros Calorie Counter
Free

This app helps users track their food intake, calories, and macronutrients to achieve health and fitness goals. It offers features like custom goal setting, automatic serving size calculation, and quick food logging via barcode scanning or label analysis. Users can also monitor progress, share meals, and even convert alcohol calories into macro equivalents.

Custom macro goal settingAutomatic serving size calculationBarcode and label scanning for food logging
💪 Health & Fitness
(19K)
freemium
11
Foodvisor - AI Calorie Counter
Foodvisor - AI Calorie Counter
Foodvisor - AI Calorie Counter
Diet Tracker for Weight Loss
Free

This app acts as your personal nutritionist, offering a personalized nutrition plan and helping you track your daily intake. It features an AI-powered camera for instant food recognition, tailored recipes, and progress monitoring to help you achieve your health and wellness goals.

AI Calorie Tracker with Instant Food Recognition CameraPersonalized Nutrition Plans by ExpertsTailored Recipes for Healthy Eating
💪 Health & Fitness
(16K)
freemium
12
Calo: AI Food Calorie Counter
Calo: AI Food Calorie Counter
Calo: AI Food Calorie Counter
Macros, fitness & diététique
Free

This app helps you achieve your health and weight goals through personalized calorie and macro tracking. It features AI-powered food logging, barcode scanning, and custom meal plans with recipes.

AI-powered food loggingCalorie and macro trackingBarcode scanner
💪 Health & Fitness
(17K)
subscription
13
Lean: AI Macro Tracker
Lean: AI Macro Tracker
Lean: AI Macro Tracker
Calorie Counter & Calculator
Free

Effortlessly track your meals and calories with AI-powered analysis. Simply snap a photo or manually log your food for precise insights. Understand your daily needs and adjust your plan with built-in calculators for calories and deficits.

AI meal analysisPhoto food loggingBarcode scanning
💪 Health & Fitness
(2.6K)
free with in-app purchases
14
Calorie Counter by fatsecret
Calorie Counter by fatsecret
Calorie Counter by fatsecret
Diet & Weight Loss Tracker
Free

Track your food, exercise, and weight with a comprehensive database and supportive community. Features include barcode scanning, image recognition, and integration with health apps. Premium options offer personalized meal plans and advanced tracking.

Food diary with extensive databaseBarcode scanner and image recognitionExercise tracking and calorie burn log
💪 Health & Fitness
(14K)
freemium
15
Smart - Food Score Calculator
Smart - Food Score Calculator
Smart - Food Score Calculator
Weight & Diet Macro Watchers
Free

Easily track your diet and nutrition when eating out. Access detailed calorie, carb, fat, and protein information for thousands of restaurant and grocery items. Make informed food choices on the go to stay on track with your fitness or diet plan.

Restaurant nutrition guideGrocery item nutritionBarcode scanning
🍔 Food & Drink
(2.4K)
free
16
AI Calorie Counter - Appediet
AI Calorie Counter - Appediet
AI Calorie Counter - Appediet
Food, Macro & Fitness Tracker
Free

Effortlessly track your food intake with AI-powered photo and barcode scanning. Get detailed nutritional breakdowns, personalized diet plans, and expert health advice to achieve your weight loss and wellness goals.

AI food photo scanningBarcode scanner for food entryDetailed nutritional breakdown
💪 Health & Fitness
(45K)
subscription
17
Diet & Meal Planner by GetFit
Diet & Meal Planner by GetFit
Diet & Meal Planner by GetFit
Calorie counter, food tracker
Free

This app offers personalized meal plans and a calorie counter to help users lose weight naturally. It includes a food tracker, nutrition scanner, healthy recipes, and motivational tools to support a healthy lifestyle.

Personalized diet plansCalorie counterFood logging and diary
💪 Health & Fitness
(6.2K)
subscription
18
Calorie Counter - MyNetDiary
Calorie Counter - MyNetDiary
Calorie Counter - MyNetDiary
Food Nutrition Macro Tracker
Free

Track your food intake and nutrition with a comprehensive calorie counter. Log meals quickly using a barcode scanner, photo analysis, or search. Monitor macros, vitamins, minerals, and more with detailed insights and progress charts.

Barcode scannerMeal Scan (photo logging)Macro and protein tracking
💪 Health & Fitness
(157K)
freemium
19
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Keto Diet App - Carb Tracker
Weight Loss, Meal Plan, Recipe
Free

This app acts as your personal keto coach, offering a powerful macro tracker with hundreds of recipes and diet tips. Easily log food using voice recognition or a barcode scanner, and receive a custom weight loss plan to reach your goals faster.

Automatic macro calculatorCarb and calorie counterPersonalized weight loss plan
💪 Health & Fitness
(81K)
free with in-app purchases
20
Fooducate: Nutrition Coach
Fooducate: Nutrition Coach
Fooducate: Nutrition Coach
Calorie Counter & Diet Tracker
Free

This app helps millions track food intake, exercise, and sleep to improve health and achieve weight loss goals. It analyzes food quality, counts macros, and offers personalized dietary advice for various health needs. Scan barcodes to uncover hidden ingredients and discover healthier alternatives.

Log food intake and exerciseAnalyze calorie quality and macrosScan product barcodes for nutrition grades
💪 Health & Fitness
(77K)
free with in-app purchases