Best Ketosis Apps

249+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated September 2026

Looking for free ketosis apps? 19 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Ketosis Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Fasting + Intermittent FastingFasting + Intermittent FastingFree4.8★ (6.8K)NoYesSep 2026
2Carb Manager: Keto & Macro LogCarb Manager: Keto & Macro LogFree4.8★ (733K)NoYesSep 2026
3Intermittent Fasting Tracker -Intermittent Fasting Tracker -Free4.9★ (29K)YesYesSep 2026
4Zero: Fasting & Food TrackerZero: Fasting & Food TrackerFree4.8★ (445K)NoYesSep 2026
5BodyFast: Intermittent FastingBodyFast: Intermittent FastingFree4.7★ (145K)NoYesSep 2026
6Keto diet app-Low carb managerKeto diet app-Low carb managerFree4.6★ (62K)NoYesSep 2026
7Stupid Simple Keto Diet AppStupid Simple Keto Diet AppFree4.6★ (8.9K)NoYesSep 2026
8MyMojoHealthMyMojoHealthFree4.7★ (18K)NoYesSep 2026

Top Picks for Ketosis

Fasting + Intermittent Fasting#1

Fasting + Intermittent Fasting by Byte Puls d.o.o.

Fasting Tracker - Lose Weight
Editor's Choice
💪 Health & Fitness
4.8😊(6.8K ratings)
FreeIn-App Purchases
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This app helps users achieve weight loss and improve metabolic health through intermittent fasting. It offers personalized plans, progress tracking, and coaching without dietary restrictions.

What We Love

  • ⭐ Excellent tracking and visualization
  • 👍 Simple and easy to use
  • 💪 Helps stay motivated and on track
  • 🔍 Detailed information on fasting stages
  • 📊 Useful data and metrics provided

Room to Improve

  • 🔍 Lack of advanced features (food/exercise logging)
  • 💸 Subscription model not well-received
  • 🔈 Intrusive ads and pop-ups
  • 🐛 Bugs and glitches (time tracking issues, app crashes)
  • 📉 Slow performance and lag
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😊(733K ratings)
FreeIn-App Purchases
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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
Intermittent Fasting Tracker -#3

Intermittent Fasting Tracker - by Leap Health

Easy Fast Timer, Lose Weight
Worth Considering
💪 Health & Fitness
4.9😊(29K ratings)
FreeAdsIn-App Purchases
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This app helps users achieve sustainable weight loss and health goals through personalized intermittent fasting plans and an AI-powered calorie counter. It offers features like food scanning, hydration tracking, and detailed progress monitoring. Users can access science-based insights and healthy recipes to support their journey.

What We Love

  • 🚀 Easy to use
  • 👍 Helpful features
  • 💡 Customizable fasting plans
  • 🚀 Intuitive interface
  • 👍 Motivating progress tracking
  • 💡 Informative body stage insights
  • 🚀 Accurate calorie counting
  • 👍 Effective for weight loss

Room to Improve

  • 🐛 Inconsistent calorie tracking
  • 🔍 Limited food database
  • 💸 Excessive ads in free version
  • 🐛 Freezing/crashing issues
  • 🔍 Syncing problems with Apple Health
  • 🔍 Confusing to navigate

More Ketosis apps to explore

FAQ about Ketosis

What are the best ketosis apps for iPhone?
Fasting + Intermittent Fasting tops our ketosis apps ranking as of September 2026, with a 4.8-star average from 6.8K App Store ratings, and it's free to download.
Yes — 19 of the top ketosis apps we rank are free to download, including Fasting + Intermittent Fasting and Carb Manager: Keto & Macro Log.
Fasting + Intermittent Fasting has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ ketosis apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app is designed to help users lose weight and improve various health markers like metabolic health, blood sugar regulation, and mental clarity through intermittent fasting. It provides tools and guidance to make the fasting journey easier and more effective.
The app offers an advanced fasting and intermittent fasting tracker, over 15 free intermittent fasting plans, customizable plans, and an analytical section to measure progress. It also includes personalized meal plans and access to experienced coaches for support.