Best Free Macro Calculator Diet Apps

246+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated August 2026

Looking for free free macro calculator diet apps? 18 of our 246+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Free Macro Calculator Diet Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MacroFactor - Macro TrackerMacroFactor - Macro TrackerFree4.8★ (21K)NoYesAug 2026
2Macro_CalculatorMacro_CalculatorFreeNoNoMay 2026
3Macro & Calorie CalculatorMacro & Calorie CalculatorFree5.0★ (1)NoYesJul 2026
4Try MacroTry MacroFree4.2★ (5)YesNoMay 2026
5Calorie Deficit CalculatorCalorie Deficit CalculatorFree4.7★ (3.7K)NoYesAug 2026
6Macros: Calorie CalculatorMacros: Calorie CalculatorFreeYesNoAug 2026
7IIFYM Macro/Calorie CalculatorIIFYM Macro/Calorie Calculator$1.991.0★ (13)NoNoJun 2026
8Keto Calculator - Keto BuddyKeto Calculator - Keto BuddyFree4.6★ (8.4K)NoNoAug 2026

Top Picks for Free Macro Calculator Diet

MacroFactor - Macro Tracker#1

MacroFactor - Macro Tracker by Stronger By Science Technologies LLC

Calorie Counter & Food Log
Editor's Choice
💪 Health & Fitness
4.8😊(21K ratings)
FreeIn-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
Macro & Calorie Calculator#3

Macro & Calorie Calculator by Principia Partners LLC

TDEE, BMI, Fluid for Dietitian
Worth Considering
💪 Health & Fitness
5.0(1 ratings)
FreeIn-App Purchases
Macro & Calorie Calculator screenshot 1
Macro & Calorie Calculator screenshot 2
Macro & Calorie Calculator screenshot 3
Macro & Calorie Calculator screenshot 4

This app transparently calculates your daily calorie and macro targets, showing every step of the process. It also provides personalized fluid intake recommendations and BMI analysis, helping you understand the data behind your health goals.

More Free Macro Calculator Diet apps to explore

4
Try Macro
Try Macro
Try Macro
by COCOPALMS TECH WEB DESIGN COMPANY
Free

This app simplifies nutrition by offering personalized meal plans and effortless macro tracking. It provides AI-driven insights and reminders to help users achieve their health goals, whether it's weight loss, muscle gain, or healthier eating habits.

Personalized meal plansMacro trackingSmart meal prep
💪 Health & Fitness
(5)
ad-supported
5
Calorie Deficit Calculator
Calorie Deficit Calculator
Calorie Deficit Calculator
Oatsy Macro Tracker Diet Coach
Free

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.

Advanced food diary with large nutrition databaseCalorie and macro/micronutrient trackingCustomizable diet plans (Keto, Intermittent Fasting, etc.)
💪 Health & Fitness
(3.7K)
free with in-app purchases
6
Macros: Calorie Calculator
Macros: Calorie Calculator
Macros: Calorie Calculator
Macro Calculator
Free

This app helps you calculate your daily caloric and macronutrient needs for weight loss, maintenance, or muscle gain. It offers five different macro calculation methods and tracks your progress with insightful graphs.

Calculate caloric needsDetermine precise macronutrient needsChoose weight loss, maintenance, or muscle gain goals
💪 Health & Fitness
(0)
ad-supported
7
IIFYM Macro/Calorie Calculator
IIFYM Macro/Calorie Calculator
IIFYM Macro/Calorie Calculator
Your daily macro requirements
$1.99

Calculate your daily calorie and macronutrient needs based on your personal goals. It uses established formulas to estimate intake for weight loss or gain, and provides tailored recommendations for protein, fat, carbohydrates, and fiber.

Calorie intake calculatorMacro requirement estimationWeight loss/gain goal adjustment
💪 Health & Fitness
(13)
free
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
Macros - Calorie Counter
Macros - Calorie Counter
Macros - Calorie Counter
Macro & Food Diary Tracker
Free

Easily track your daily calorie and macronutrient intake to achieve your health goals. Whether you aim for weight loss, muscle gain, or a healthier lifestyle, this app provides personalized goals, a comprehensive food database, and activity tracking.

Personalized calorie and macro goalsExtensive food databaseBarcode scanner
💪 Health & Fitness
(876)
free with in-app purchases
10
Find Your Macros
Find Your Macros
Find Your Macros
Quick Macro Finder by FDL
Free

Easily calculate your daily calorie and macronutrient needs to achieve your fitness goals. Quickly convert alcohol intake into trackable macros to stay on course. This tool simplifies macro calculations for beginners and those seeking a fast, convenient method.

Calculate daily calorie needsCalculate macronutrient needsConvert alcohol intake to macros
💪 Health & Fitness
(205)
free
11
MacrosFirst - Macro Tracker
MacrosFirst - Macro Tracker
MacrosFirst - Macro Tracker
Calorie Counter, Nutrition Log
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
(21K)
freemium
12
Macro Calculator By Fittur
Macro Calculator By Fittur
Macro Calculator By Fittur
Calculate Macros Accurately
Free

This app calculates personalized macronutrient targets for fat loss, muscle gain, or weight maintenance. It uses body fat percentage for greater accuracy than traditional BMI-based calculators. Achieve your fitness goals with precise nutrition guidance.

Body fat-based macro calculationPersonalized nutrition targetsSupports fat loss, muscle gain, weight maintenance
💪 Health & Fitness
(4.1K)
free
13
MacroMate - Fast Food Macros
MacroMate - Fast Food Macros
MacroMate - Fast Food Macros
Find Healthy Meals Anywhere
Free

Easily find high-protein, macro-friendly meals at over 100 popular restaurants. Get exact nutritional information and personalized AI-powered recommendations to stay on track with your fitness goals, even when eating out.

Macro-friendly meal finderAI nutrition coachMenu scanning
💪 Health & Fitness
(35)
free with in-app purchases
14
6-Pack Macros
6-Pack Macros
6-Pack Macros
Fitness Tracking
Free

This app guides users to achieve fitness goals by tracking nutrition and providing customized workout plans. It offers a food database and custom meal creation for precise dietary logging. It's a comprehensive tool for weight loss, muscle gain, or general health improvement.

Nutrition trackingMacronutrient intake loggingCustomizable workout routines
💪 Health & Fitness
(31)
free with in-app purchases
15
Calorie Calculator - MacroCal
Calorie Calculator - MacroCal
Calorie Calculator - MacroCal
Keto, Carb, IIFYM, Protein
Free

Calculate your daily calorie and macronutrient needs to achieve your fitness goals, whether it's losing fat, building muscle, or maintaining your current weight. This tool helps you determine the right intake based on your personal profile and objectives.

Daily calorie calculationMacronutrient breakdownGoal setting (lose, maintain, gain)
💪 Health & Fitness
(9)
free with in-app purchases
16
EatFit: AI Calorie & Macro
EatFit: AI Calorie & Macro
EatFit: AI Calorie & Macro
Food scanner, Meal planner
Free

Track your nutrition, macros, and water intake with AI-powered food recognition and meal planning. Accurately meet your calorie and macro goals by balancing your intake, not restricting your choices. This smart app helps you understand your food and stay hydrated.

AI food recognition from photosLabel scanning and recognitionCalorie and macro tracking
💪 Health & Fitness
(82)
free with in-app purchases
17
Diet AI: Calorie Tracker
Diet AI: Calorie Tracker
Diet AI: Calorie Tracker
Food, Macro, Meal, Cal Counter
Free

This app acts as a personalized diet and nutrition assistant. It creates custom diet plans based on lifestyle questions, analyzes meals from photos for nutritional information, and offers a calorie and macro tracker. Users can discover recipes and meal plans tailored to their fitness goals.

Personalized diet plan creationAI-powered meal analysis from photosCalorie and macro tracking
💪 Health & Fitness
(452)
freemium
18
TDEE
TDEE
TDEE
TDEE, BMR and BMI Calculator
Free

Calculate your Total Daily Energy Expenditure (TDEE) using your body metrics. This app then helps you divide your daily calorie allowance into precise macronutrient targets for your specific diet.

TDEE calculationBMR calculationBMI calculation
💪 Health & Fitness
(482)
free with in-app purchases
19
Macro Sync
Macro Sync
Macro Sync
Nutrition Tracking Made Simple
Free

This app simplifies health and fitness by making nutrition tracking easy. Log meals, organize recipes, and monitor calories and macronutrients with proven recommendations. It offers a user-friendly interface with powerful tools for personalized diet management.

Macro trackingMicro trackingCustom goals
💪 Health & Fitness
(602)
free with in-app purchases
20
다량 영양소 계산기 - Mifflin-St Jeor 방정식
다량 영양소 계산기 - Mifflin-St Jeor 방정식
다량 영양소 계산기 - Mifflin-St Jeor 방정식
by Rukshan Marapana
$2.99

Calculate your daily macronutrient needs using a scientifically backed formula. This app provides a straightforward way to determine your BMR and customize your macro targets based on your personal information.

Macronutrient calculationMifflin-St Jeor Formula for BMRCustomizable macro targets
💪 Health & Fitness
(4)
paid

FAQ about Free Macro Calculator Diet

What are the best free macro calculator diet apps for iPhone?
MacroFactor - Macro Tracker tops our free macro calculator diet apps ranking as of August 2026, with a 4.8-star average from 21K App Store ratings, and it's free to download.
MacroFactor - Macro Tracker has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 246+ free macro calculator diet apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
MacroFactor is a macro and calorie tracking app that uses a dynamic algorithm to personalize your nutrition targets. It adapts to your metabolism and progress, providing weekly coaching adjustments to help you achieve sustainable diet goals without stress.
Key features include a science-backed macro plan, a dynamic nutrition coach algorithm that adapts to your metabolism, a fast macro tracker with barcode scanning and custom foods, a verified food database for accuracy, and detailed breakdowns of macros and micronutrients.