Best Keto Calculator Free Apps

250+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated October 2026

Every iPhone needs a few good keto calculator free apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Keto Calculator Free Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Keto Calculator - Keto BuddyKeto Calculator - Keto BuddyFree4.6★ (8.4K)NoNoOct 2026
2Carb Manager: Keto & Macro LogCarb Manager: Keto & Macro LogFree4.8★ (736K)NoYesOct 2026
3Keto Diet App - Carb TrackerKeto Diet App - Carb TrackerFree4.7★ (82K)NoYesOct 2026
4Keto diet app-Low carb managerKeto diet app-Low carb managerFree4.6★ (62K)NoYesOct 2026
5Natural Thrive Keto CalculatorNatural Thrive Keto CalculatorFree—NoNoOct 2026
6CarbCount: Keto Carb CounterCarbCount: Keto Carb CounterFree——NoJul 2026
7Keto Diet App: Keto ManagerKeto Diet App: Keto ManagerFree4.7★ (9.4K)NoYesOct 2026
8KetoScanner: Keto Food ScannerKetoScanner: Keto Food ScannerFree—YesNoJul 2026

Top Picks for Keto Calculator Free

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
  • 🤷‍♀️ Doesn't work as expected
  • 🔍 Hard to read results
Carb Manager: Keto & Macro Log#2

Carb Manager: Keto & Macro Log by Wombat Apps LLC

Calorie Counter & Diet Tracker
Strong Contender
💪 Health & Fitness
4.8😊(736K ratings)
FreeIn-App Purchases
Carb Manager: Keto & Macro Log screenshot 1
Carb Manager: Keto & Macro Log screenshot 2
Carb Manager: Keto & Macro Log screenshot 3
Carb Manager: Keto & Macro Log screenshot 4
Carb Manager: Keto & Macro Log screenshot 5
Carb Manager: Keto & Macro Log screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 🔒 Comprehensive tracking
  • 👍 Helpful for keto/low-carb diets
  • 👍 Useful recipes and meal plans
  • 👍 Syncs with fitness devices
  • 👍 Detailed macro and nutrient breakdown

Room to Improve

  • 🐛 Inaccurate food database
  • 🐛 Buggy and crashes frequently
  • 🐛 Clunky interface and navigation
  • 🔒 Paywall for many features
  • 👎 Limited metric options (e.g. grams)
  • 👎 Slow performance and loading times
Keto Diet App - Carb Tracker#3

Keto Diet App - Carb Tracker by FJOR NUTRITION, INC.

Weight Loss, Meal Plan, Recipe
Worth Considering
💪 Health & Fitness
4.7😊(82K ratings)
FreeIn-App Purchases
Keto Diet App - Carb Tracker screenshot 1
Keto Diet App - Carb Tracker screenshot 2
Keto Diet App - Carb Tracker screenshot 3
Keto Diet App - Carb Tracker screenshot 4
Keto Diet App - Carb Tracker screenshot 5
Keto Diet App - Carb Tracker screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 👍 Helpful for tracking macros
  • 🚀 Accurate food logging
  • 💡 Useful insights and information
  • 👍 Great for beginners
  • 🚀 Convenient barcode scanning
  • 👍 Supportive community and team
  • 👍 Customizable macros and goals

Room to Improve

  • 🐛 Inconsistent food database
  • 🐛 Inaccurate calorie/carb calculations
  • 💡 Lacks integration with fitness trackers
  • 💡 Limited recipe options and customization
  • 💡 Difficult to add and manage own recipes
  • 🐛 Confusing subscription process

More Keto Calculator Free apps to explore

FAQ about Keto Calculator Free

What are the best keto calculator free apps for iPhone?
Keto Calculator - Keto Buddy tops our keto calculator free apps ranking as of October 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 October 2026.
We track 250+ keto calculator free apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.