Best Keto Calculator Free Macro Apps

225+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated July 2026

Out of 225+ keto calculator free macro apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Keto Calculator Free Macro Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Keto Calculator - Keto BuddyKeto Calculator - Keto BuddyFree4.6★ (8.4K)NoNoAug 2026
2Stupid Simple Keto Diet AppStupid Simple Keto Diet AppFree4.6★ (8.9K)YesYesAug 2026
3Keto Diet App: Keto ManagerKeto Diet App: Keto ManagerFree4.7★ (9.4K)YesYesAug 2026
4Keto diet app-Low carb managerKeto diet app-Low carb managerFree4.6★ (62K)NoYesAug 2026
5Keto Diet App - Carb TrackerKeto Diet App - Carb TrackerFree4.7★ (82K)NoYesAug 2026
6MacrosFirst - Macro TrackerMacrosFirst - Macro TrackerFree4.9★ (20K)YesYesAug 2026
7Carb Manager: Keto & Macro LogCarb Manager: Keto & Macro LogFree4.8★ (732K)NoYesAug 2026
8Macro Tracker - Keto Diet AppMacro Tracker - Keto Diet AppFree4.5★ (1.8K)NoNoJul 2026

Top Picks for Keto Calculator Free Macro

Keto Calculator - Keto Buddy#1

Keto Calculator - Keto Buddy by Compumaster Ltd

Keto/low carb macro calculator
Editor's Choice
💪 Health & Fitness
4.6😐(8.4K ratings)
Free
Keto Calculator - Keto Buddy screenshot 1
Keto Calculator - Keto Buddy screenshot 2
Keto Calculator - Keto Buddy screenshot 3
Keto Calculator - Keto Buddy screenshot 4
Keto Calculator - Keto Buddy screenshot 5

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.

What We Love

  • 👍 Good so far
  • 👍 Convenient and easy to use
  • 👍 Helpful resource
  • 👍 Precise and informative

Room to Improve

  • 🤔 Confusing interface
  • 🤔 Lacks functionality
  • 💰 Expensive
Stupid Simple Keto Diet App#2

Stupid Simple Keto Diet App by Venn Interactive, Inc.

Low Carb Diet & Macros Manager
Strong Contender
💪 Health & Fitness
4.6😊(8.9K ratings)
FreeAdsIn-App Purchases
Stupid Simple Keto Diet App screenshot 1
Stupid Simple Keto Diet App screenshot 2
Stupid Simple Keto Diet App screenshot 3
Stupid Simple Keto Diet App screenshot 4
Stupid Simple Keto Diet App screenshot 5

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.

What We Love

  • 🚀 Stupid simple to use
  • 👍 Easy to track macros
  • 👍 Helpful for keto diet
  • 👍 Customizable

Room to Improve

  • 🐛 Sync and login issues
  • 🐛 Inaccurate food data
  • 🐛 Confusing navigation
Keto Diet App: Keto Manager#3

Keto Diet App: Keto Manager by Anish Modan

Carb Cycle & Macro Tracker App
Worth Considering
💪 Health & Fitness
4.7😊(9.4K ratings)
FreeAdsIn-App Purchases
Keto Diet App: Keto Manager screenshot 1
Keto Diet App: Keto Manager screenshot 2
Keto Diet App: Keto Manager screenshot 3
Keto Diet App: Keto Manager screenshot 4
Keto Diet App: Keto Manager screenshot 5
Keto Diet App: Keto Manager screenshot 6

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.

What We Love

  • 👍 User-friendly interface
  • 🚀 Easy to track macros and calories
  • 💡 Helpful keto diet information and recipes
  • 🔍 Extensive food database with barcode scanning

Room to Improve

  • 🐛 Glitches and bugs causing data loss
  • 🤔 Difficulty adding custom foods and recipes
  • 💸 Subscription required for full functionality

More Keto Calculator Free Macro apps to explore

4
Keto diet app-Low carb manager
Keto diet app-Low carb manager
Keto diet app-Low carb manager
Macros tracker & counter
Free

This app acts as your personal keto nutritionist, simplifying weight loss by tracking macros and food intake. It offers a custom macro plan, extensive food database with barcode scanning, and helpful features like meal plans and recipe creation.

Custom macro plan generationFood tracking with barcode scannerKeto meal plans and recipes
💪 Health & Fitness
(62K)
free with in-app purchases
5
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
(82K)
free with in-app purchases
6
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
(20K)
freemium
7
Carb Manager: Keto & Macro Log
Carb Manager: Keto & Macro Log
Carb Manager: Keto & Macro Log
Calorie Counter & Diet Tracker
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
(732K)
freemium
8
Macro Tracker - Keto Diet App
Macro Tracker - Keto Diet App
Macro Tracker - Keto Diet App
Simple Low Carb Health Manager
Free

Easily track your low-carb and ketogenic diet by quickly inputting custom foods and their nutritional information. This app allows you to save and reuse your own recipes, adjusting serving sizes automatically for accurate macro and calorie tracking.

Custom food loggingSave and reuse custom foodsAdjustable serving sizes
💪 Health & Fitness
(1.8K)
free
9
Cronometer: Calorie Counter
Cronometer: Calorie Counter
Cronometer: Calorie Counter
Nutrition, macro, diet tracker
Free

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.

Extensive verified food databaseDetailed nutrient and calorie trackingFitness goal setting and progress monitoring
💪 Health & Fitness
(96K)
free with in-app purchases
10
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
11
MyNetDiary Carb Genius - Keto
MyNetDiary Carb Genius - Keto
MyNetDiary Carb Genius - Keto
Low Carb Food & Diet Manager
Free

This app helps users manage low-carb and keto diets with comprehensive tools for food logging, carb counting, macro tracking, and personalized diet plans. It features a vast food database, recipe library, and exercise tracking to support weight loss and nutrition goals.

Low-carb and keto diet managementCarb counter and macro trackerExtensive verified food database
💪 Health & Fitness
(5.1K)
subscription
12
Keto-Recipes
Keto-Recipes
Keto-Recipes
Simple Keto Diet Tracker App
Free

This app helps you follow a ketogenic diet by suggesting keto-friendly meals and tracking your fat intake. It simplifies meal planning and barcode scanning to help you stay motivated and achieve your weight loss goals.

Keto meal suggestionsFat intake trackingBarcode scanning
🍔 Food & Drink
(196)
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
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
(834)
free with in-app purchases
15
Keto Diet app. Carb counter
Keto Diet app. Carb counter
Keto Diet app. Carb counter
Net Carb Manager, Keto recipes
Free

This app acts as a personal keto nutritionist, helping you manage your diet, water intake, and exercise. It offers personalized recommendations, tracks micro and macro nutrients with a barcode scanner, and allows you to create and save your own recipes.

Personalized keto nutritionistNet carb managerBarcode scanner for nutrients
💪 Health & Fitness
(313)
free with in-app purchases
16
Eato®: Calorie Tracker
Eato®: Calorie Tracker
Eato®: Calorie Tracker
Food, Macro, Nutrition Counter
Free

This app helps you manage your weight and health through calorie tracking, meal planning, and activity monitoring. It offers personalized plans, recipe suggestions, and progress tracking to support your wellness journey.

Calorie CounterBarcode ScanningAI Image Recognition
💪 Health & Fitness
(23K)
subscription
17
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
18
My Keto Scanner: Carb Checker
My Keto Scanner: Carb Checker
My Keto Scanner: Carb Checker
Net Carb, Macro & Diet Tracker
Free

This app helps users learn and follow a low-carb, high-fat ketogenic diet. It provides a macro nutrient calculator, a guide to allowed/disallowed foods, recipes, and a daily tracker for calories and carbs to support weight loss and health goals.

Macro nutrient calculatorAllowed/disallowed foods referenceLow-carb, high-fat recipes
🍔 Food & Drink
(313)
free with in-app purchases
19
My Macros+ | Macro Tracker
My Macros+ | Macro Tracker
My Macros+ | Macro Tracker
Calorie Counter & Food Log
Free
$2.99 | 100% OFF

This app helps users track their daily food intake, calories, and macronutrients with a vast food database and convenient scanning features. It offers customizable macro goals, progress monitoring through graphs, and social sharing options. An optional AI coach assists with personalized diet adjustments.

AI food scannerNutrition label & barcode scannerCustomizable macro goals
💪 Health & Fitness
(34K)
free with in-app purchases
20
Senza: Keto & Fasting
Senza: Keto & Fasting
Senza: Keto & Fasting
Coaches | Meal Plans | Macros
Free

This app guides users through ketogenic and intermittent fasting lifestyles. It offers extensive food databases, meal planning tools, and progress tracking for nutrition, workouts, sleep, and mood. Connect with a community for support and recipe sharing.

Keto food databaseIntermittent fasting trackerMeal planning
💪 Health & Fitness
(11K)
free

FAQ about Keto Calculator Free Macro

What are the best keto calculator free macro apps for iPhone?
Keto Calculator - Keto Buddy tops our keto calculator free macro apps ranking as of July 2026, with a 4.6-star average from 8.4K App Store ratings, and it's free to download.
Keto Calculator - Keto Buddy has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 225+ keto calculator free macro apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Keto Calculator helps you determine your ideal macronutrient intake for ketogenic and other low-carb diets. It calculates the recommended percentages and amounts of fat, protein, and carbohydrates based on your individual goals and needs.
The ketogenic diet is a dietary approach that is high in fat, adequate in protein, and very low in carbohydrates. Typically, it involves consuming 60-75% of calories from fat, 15-30% from protein, and 5-10% from carbohydrates.