Intermittent Fasting Apps Test 2026

Intermittent Fasting To Lose Weight -

Healthy Eating for Longevity

What is Intermittent Fasting?

Intermittent fasting works by alternating periods of eating with longer breaks without food—these breaks are the actual “intervals” that give the method its name.

The most popular approach is the 16:8 method: you get eight hours to eat normally, and then fast for the remaining 16 hours. During your fasting window, make sure to drink plenty of fluids—water, unsweetened herbal or black tea, and black coffee are perfect.

Ratings, Prices, Features:

The 6 Best Intermittent Fasting Apps

A good intermittent fasting app stands out with easy navigation, useful reminder functions, and helpful extra info and features. Different fasting methods, like 16:8, should be flexible and customizable. User reviews and the features an intermittent fasting free app offers play a big role. And of course—how well does the app motivate and support you in everyday life? Here are the intermittent fasting apps that really impressed us.

1

Top Pick – Our Favorite

If: Intermittent Fasting 16:8

The If app makes intermittent fasting easy, effective, and personalized—no calorie counting required. It comes with customized recipes, fasting plans, reminders, and simple home workouts. The app motivates you daily, tracks your progress, and guides you step by step on your journey. This way, you can reach your goal weight! The app was also honored with the German App Award 2026.

Ratings:

AppStore: 4,6 ★

Google Play Store: 4,4 ★

  • Prices: free basic features, 1 month = 12,49 $, 3 months = 14,49 $ (discount), 12 months = 39,99 $
  • Main Features: A fasting tracker with customizable fasting times and reminders for eating and fasting windows, multiple fasting intervals (12:12, 13:11, 14:10, 16:8, 18:6 up to 23:1/OMAD), water tracker, weight, measurements, and BMI tracking, personalized recipes based on dietary preferences, allergies, and intolerances, meal plans (such as keto or low carb), daily coaching and fasting lessons, home workout videos to support your fitness, the ability to start and stop fasting periods using an Apple Watch, and intermittent fasting available for free in the basic version, including many features like the fasting timer and fasting reminders.
  • Pros: Personalized fasting plans and custom recipes designed to reduce cravings during fasting periods, fasting and water trackers with reminders, motivating weight, measurements, and BMI statistics, daily coaching tips, motivation and challenges, anti–yo-yo strategies and weight-loss boosters, a holistic approach covering nutrition, movement, sleep, and mindset, home workout videos to improve fitness, science-based fasting knowledge, data syncing with Apple Health, free to use with optional premium features, and winner of the German App Award 2026 in the “Fasting Apps” category.
  • Cons: Many features and lessons, so it can take some time to get used to the app.

2

Good – AI Coach

Simple AI Weight Loss Coach

Simple is an AI-powered weight loss coach that combines intermittent fasting tracking with AI nutrition guidance and healthy habits. You log your eating and fasting periods, receive feedback, and track your progress over time. Intermittent fasting becomes part of a sustainable lifestyle.

Ratings:

AppStore: 4,6 ★

Google Play Store: 4,1 ★

  • Prices: 1 month = 29,99 $, 3 months = 59,99 $
  • Main Features: Intermittent fasting tracking through manual logging of fasting and eating times, food and drink diary, personalized nutrition recommendations, activity and health tracking, daily motivation and feedback, workout suggestions, integration of fasting with overall health goals, focus on building long-term habits rather than just tracking time, free basic features, and a premium upgrade for additional advanced features.
  • Pros: Integrated intermittent fasting tracking, AI-powered coaching for nutrition and fasting, flexible logging of fasting and eating periods, motivating feedback and everyday tips, supports building healthy habits, combines nutrition and exercise, easy to use, free to use with optional premium features, and more than just a fasting timer.
  • Cons: Not a dedicated intermittent fasting app (no automatic fasting timer), many features are available only with a premium subscription, fasting tracking requires manual entry, it takes some time to learn all the features, and more expensive than most other intermittent fasting apps.

3

Good - For Tracking

Zero Fasting & Food Tracker

Zero is an intermittent fasting app with a fasting timer, personal statistics, and fasting plans. You start your fast with a single tap, track your progress, and gain insights into your habits. Zero focuses entirely on intermittent fasting—no calorie counting or other diet rules required.

Ratings:

AppStore: 4,7 ★

Google Play Store: 3,4 ★

  • Prices: 1 month = 9,99 $, 12 months = 69,99 $
  • Main Features: Fasting timer for intermittent fasting, preset fasting plans, customizable fasting schedules, progress tracking and statistics, science-backed content and expert articles, challenges and streaks, fasting insights and tips, one-click sign-up and timer start, focus on building healthy habits, easy-to-use interface for beginners to advanced users, support for improving body and metabolic health.
  • Pros: Intermittent fasting app with a clear focus on fasting tracking, easy to use, preset fasting methods, progress statistics, science-backed content, motivating challenges and streak tracking, no calorie or macro counting required, free basic features, supports long-term habit building.
  • Cons: Many advanced features are only available with a premium subscription, no integrated nutrition or recipes, no automatic medical feedback, lacks meal or diet planning, occasional technical issues reported by users, and data syncing and visualizations are not always perfect.

4

Good - For Beginner

FastEasy

FastEasy is an intermittent fasting app with a timer, fasting plans, and reminders. You can flexibly adjust your fasting and eating windows, track your progress, and log your weight and water intake. The app also provides recipe suggestions and insights into the effects of fasting, helping you better understand your fasting routine.

Ratings:

AppStore: 4,4 ★

Google Play Store: 4,0 ★

  • Prices: 1 month = 9,99 - 19,99 $ , 3 months = 39,99 $, 12 months = 29,99 $
  • Main Features: Intermittent fasting timer, fasting plans, food and water tracker, weight tracking, customizable recipes, progress dashboard, tips and insights on the benefits of fasting and overall health, reminders and motivation, HealthKit integration for data syncing (iOS), and the ability to adjust for diet preferences and allergies.
  • Pros: Fasting-focused app with a timer and clear overview, personalized fasting plans, easy adjustment of fasting and eating windows, water and weight tracking, recipe suggestions, insights into fasting effects and overall health, reminders, and HealthKit integration (iOS).
  • Cons: Many features are only available through a subscription, users report issues with billing and canceling, pricing and subscription structure can be unclear according to reviews, app usability and syncing could be improved, and some users find it not very intuitive.

5

Good - Only For Apple User

Intertermittent Fasting Tracker:

 Intermittent Fasting Tracker: is a lightweight app for tracking intermittent fasting, featuring a timer, clear overviews, and progress analytics, as well as iCloud synchronization between iPhone and Apple Watch. It displays fasting periods, trends, and achievements—without ads.

Ratings:

AppStore: 4,8 ★

Google Play Store: not available

  • Prices: various one-time purchase and donation options instead of subscriptions
  • Main Features: Fasting timer, visual charts and trends, progress statistics, interactive widgets, notifications and reminders, streaks and badges for motivation, iCloud syncing between iPhone and Apple Watch, simple and privacy-friendly interface without ads, supports various fasting schedules.
  • Pros: Clear timer function, charts and trends, badges and streaks, iCloud syncing between iPhone and Apple Watch, no ads, privacy-friendly, and easy-to-use interface for both beginners and advanced users.
  • Cons: No integrated nutrition or recipe tools, no coaching or AI guidance, only basic tracking without in-depth health analysis, not a comprehensive nutrition or fitness companion.

6

Good – For Minimalists

Intermittent Fasting Tracker

An app for fasting tracking with a timer, customizable plans, and progress statistics. You can start fasting periods, set eating windows, and track your progress with charts. The app provides insights and tips.

Ratings:

AppStore: 4,9 ★

Google Play Store: 4,8 ★

  • Prices: 1 month = 12,99 $, 12 months = 39,99 $
  • Main Features: Fasting timer, various fasting plans, customizable fasting and eating windows, charts and statistics to track progress, reminders and notifications, manual logging of fasting periods, health insights, tips on the effects of fasting, synchronization with Apple Health data (height, weight, etc.), suitable for beginners and advanced users, free download with in-app purchases for premium features.
  • Pros: Intermittent fasting app with a clear timer function, flexible fasting windows, statistics and charts, reminders and notifications, tips on how intermittent fasting works, optional Apple Health integration, suitable for beginners and experienced users, free basic download.
  • Cons: Many advanced features are only available with a premium subscription, focus is solely on fasting tracking (no integrated nutrition or recipe tools), some features like community or coaching are missing, manual entry is required if the timer is forgotten, privacy information regarding data use and iCloud syncing is not always clearly explained, and users report annoying ads.

Ready for Some Brainy Insights?

4 Amazing Effects of Intermittent Fasting That Almost No One Knows

1. The Body Does a “Spring Cleaning”: During fasting, your body kicks off an internal cleanup program, breaking down and renewing old or damaged cells—a natural cleansing process that many people don’t know about.


2. No More Intense Cravings: Intermittent fasting helps stabilize blood sugar levels, so sudden cravings become less frequent and eating feels more controlled and relaxed.


3. The Mind Resets: Many people report improved concentration, better focus, and mental clarity during fasting periods.


4. The Longevity Effect: By reducing inflammation and activating cell-protective processes, intermittent fasting can contribute to more energy and healthier aging.


The Best Intermittent Fasting Method:

Lose Weight Faster with Recipes

With intermittent fasting, you can technically eat whatever you want, but the quality of your meals has a big impact on how easy the fasting periods feel.

Healthy recipes with enough protein, fiber, and healthy fats help keep blood sugar stable. This keeps you fuller for longer and prevents intense hunger during fasting. On the other hand, highly processed or sugar-heavy foods often lead to quick spikes in hunger.

Tasty meals are also important because enjoying your food reduces the feeling of deprivation. If you finish your eating window satisfied, you experience fewer cravings and less mental hunger while fasting.

In addition, nutrient-rich foods nourish the body better, so hunger isn’t triggered by deficiencies. Overall, healthy and flavorful meals make fasting more relaxed and help significantly reduce cravings.

Conclusion: Start Intermittent Fasting Today!

Intermittent fasting apps make getting started especially easy because they automatically schedule fasting periods, send reminders, and track your progress. They provide structure, motivation, and reassurance, helping you integrate intermittent fasting into your daily routine stress-free. Those who start right away benefit sooner from more energy, better eating habits, and sustainable results—without complicated rules or diets.

Tested for You

This article was written by the Best-Fitness-Apps editorial team and reviewed by:

Bianca-Marie Rost
CEO & Co-Founder 5W APPS GmbH