Comparison

FastHabit Intermittent Fasting vs Window

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FastHabit Intermittent Fasting

This app helps you establish and maintain intermittent fasting routines. It offers flexible tracking, reminders, and integrates with Apple Health and Apple Watch to monitor your progress and weight.

Highlights
  • Flexible fast length setting
  • Daily logging and progress tracking
  • Reminders and notifications
  • Weight tracking
  • Apple HealthKit integration
  • Apple Watch support
  • Data export
Features
Read full description

FastHabit helps you start and stay consistent with Intermittent Fasting. Set your fast length, log daily, and use advanced features like reminders, weight tracking and Health App syncing, Apple Watch integration, calendar views, data export, and multi-day fasting to track your progress and accelerate your results. SIMPLE, FLEXIBLE TRACKING - Choose how many hours you want to fast - Keep your motivation in view- See percent complete, time completed, time remaining, and target end. - Easy editing. Stop, restart, or adjust your fast at any time. SYNC EVERYWHERE - Apple Watch integration: Leave your phone at home and still track your fast. - Save and transfer your fasts to a new device with iCloud syncing - FastHabit also integrates with Apple HealthKit. This lets you sync your logged weight in the app automatically to your HealthKit profile. FastHabit also pulls in updated weight data from HealthKit if enabled, to always keep your weight data in sync across the board. SET REMINDERS AND NOTIFICATIONS - Choose the days and times you want reminders to start fasting - Get a notification when your fast is complete MOTIVATIONAL STATS AND PROGRESS: - 10 day Snapshot with ‘streaks’ to show how many days in a row you’ve fasted and how many days you’ve met your goals – a great way to stay motivated. - Calendar and weekly views with daily details - Weight tracking views with fasting overlay MORE GREAT FEATURES - Apple watch complications - iPhone widget - Getting started guide - Enhanced support for longer, multi-day fasts - Export your data FastHabit has been featured in GQ, the Guardian, and Fast Company. --- FastHabit offers an optional auto-renewing annual Premium Subscription (price varies by territory, may include free trial) located on the Upgrade page. Payments will be charged to your iTunes Account after confirmation. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the subscription period. Account will be charged for renewal within 24 hours prior to the end of the current period. Subscriptions may be managed in your iTunes Account’s Settings after purchasing. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: https://fasthabit.com/privacy-policy Terms of Service: https://fasthabit.com/terms-of-service

About

Window

This app helps you adopt an intermittent fasting lifestyle with science-based guidance and personalized recommendations. Track your fasting and eating periods, monitor weight loss goals, and stay hydrated. Access expert insights and challenges to build healthier habits.

Highlights
  • Fasting timer
  • Weight journal
  • Water tracker
  • Personalized fasting programs
  • Meal plans
  • Healthy challenges
Features
Read full description

Take the step towards a healthier you with Window, your in-hand intermittent fasting companion. We use a science-based approach, guided by experts, and offer personalized recommendations suited to you and your lifestyle! Intermittent fasting is a popular eating pattern that can help you lose weight and feel healthier. Window will help you do it confidently – the right way. Track your fasting and eating, set weight loss goals and monitor them, track your water consumption, and get healthy insights from nutritionists. Window has everything you need (and more) to create a healthier lifestyle! ** What you will get as a FREE Window user ** • Fasting timer – Track your fasting and eating periods. • Timely reminders – Get notifications when your fasting windows close or open. • Weight journal – Set your weight goal, and monitor the progress. • Water tracker – Control your hydration level. • Healthy blog – Learn from leading nutritionists, and get insights on health, eating, and body – and how they all relate. • Syncs with your Apple Watch. • Syncs with Apple Health. ** Join Window PREMIUM to access: ** • Personalized fasting program. • All intermittent fasting plans – Switch between fasting plans to meet your current needs. • Your individual meal plan – Get nutritionists’ recommendations of what to eat for breakfast, lunch, and dinner. • Personal statistics – Track your own statistics like weight, water intake, and more. • Healthy challenges – Build new habits, like consuming less sugar, with small tasks. • Nutrition and mood tracker – Understand how fasting influences your body and mind. Whether you want to improve your eating habits or lose a little weight, we will help you stay on track and provide all of the support and guidance you may need. * SUBSCRIPTION INFORMATION Subscription payments will be charged to your App Store account at confirmation of your purchase. Subscriptions will automatically renew and you will be charged unless auto-renew is turned off or unless you cancel at least 24 hours prior to the end of the current subscription or trial period. Any unused portion of a free trial period will be forfeited when you purchase a premium subscription during the free trial period. The cost of renewal depends on the Subscription Plan you choose. Subscriptions and auto-renewal may be managed by going to Account Settings after purchase or by contacting Customer Support. Window is intended to be a tool to track intermittent fasting and is not a medical or healthcare service. The content within Window is for informational purposes only. You should consult with a medical professional before starting intermittent fasting or any other weight loss program, especially if you are pregnant or suffer from a medical condition. Happy tracking! Icons powered by icons8.com ThrivePort, LLC is a part of the Apalon family of brands. See more at Apalon.com. By using Window you agree to our Terms of Service and Privacy Policy. Privacy Policy: http://www.thriveport.com/privacypolicy/ EULA: http://www.thriveport.com/eula/ AdChoices: http://www.thriveport.com/privacypolicy/#4 California Privacy Notice: http://www.thriveport.com/privacypolicy/index.html#h

Screenshots

FastHabit Intermittent Fasting4 screens
Window4 screens

Verdict

The call

The clearest difference is review sentiment: FastHabit Intermittent Fasting at 58% against Window's 22%. FastHabit Intermittent Fasting also leads on rating (4.8 vs 4.5). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FastHabit Intermittent Fasting sells 2 in-app purchases, starting at $59.99 per year and Window sells 16 in-app purchases, starting at $0.49 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

FastHabit Intermittent Fasting holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 14K and 11K respectively. Written reviews point the same way: 58% of FastHabit Intermittent Fasting's written reviews are positive against 22% of Window's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 28, 2026.

Scorecard2 real differences · 8 level
FastHabit Intermittent Fasting versus Window: the parameters behind the verdict, then further details
ParameterFastHabit Intermittent FastingWindow
PriceFreeFree
Rating4.8 (14K ratings) — better4.5 (11K ratings)
Positive reviews57.9% of reviews — better22.0% of reviews
Number of ratings14K — better11K
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.014.0 — better
Further details — not scored
Size31 MB131 MB
Age rating4+17+
DeveloperApp HoldingsMosaic S.r.l.

Customer experience

FastHabit Intermittent Fasting

All ratings13,878 ratings
Positive94.2%
Neutral2.8%
Negative3.0%
Written reviews373 reviews
Positive57.9%
Neutral10.7%
Negative31.4%

Window

All ratings10,601 ratings
Positive88.0%
Neutral4.7%
Negative7.3%
Written reviews952 reviews
Positive22.0%
Neutral9.0%
Negative69.0%

User reviews

FastHabit Intermittent Fasting

From 14K App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Clean and intuitive interface
  • 🚀 Straightforward fasting tracking
  • 🚀 Seamless Apple Watch integration
  • 💰 Reasonable one-time purchase

Room to improve

  • 🐛 Issues with syncing across devices
  • 🐛 Bugs with editing/extending fasts
  • 🔒 Lack of cloud/iCloud sync
  • 🔒 Limited customization options
  • 🐛 Unreliable reminders/notifications

Window

From 11K App Store ratings

What we love

  • 🚀 Easy to use
  • 📊 Helpful data tracking
  • 🔍 Comprehensive features
  • 👍 Flexible fasting options
  • 💪 Motivating for fasting

Room to improve

  • 🐛 Sync issues across devices
  • 🕰️ Inconsistent time tracking
  • 💰 Expensive subscription
  • 🔍 Confusing interface changes
  • 🔧 Unreliable app functionality

Bugs and requests

FastHabit Intermittent Fasting

Reported bugs

3 issues
  • App freezing or crashing after updates
  • Inability to manually add or edit fasts
  • Inconsistent tracking of long fasts across days

Requested features

5 requests
  • Ability to track multiple fasts per day
  • Option to set custom fasting duration goals
  • More detailed fasting history and analytics
  • Improved Apple Watch complications and controls
  • Integration with other health/fitness apps

Window

Reported bugs

5 issues
  • Fasting times not accurately recorded
  • Data loss and reset issues
  • Subscription management problems
  • Frequent app crashes and freezes
  • Notifications not working as expected

Requested features

5 requests
  • Ability to edit fasting/eating times
  • Integration with fitness trackers
  • More detailed data analysis and reporting
  • Customizable fasting plans and reminders
  • Better support for longer fasting periods

In-app purchases

2 purchases

FastHabit Intermittent Fasting

Subscriptions1
  • FastHabit Premium1 Year trial2 variants$59.991 Year
One-time1
  • Upgrade To Pro$2.99
16 purchases

Window

Subscriptions16
  • Window Premium (1 Year)1 Year trial$0.491 Year
  • Window Pro Weekly$4.997 Days
  • Window Pro Weekly7 Days trial$4.997 Days
Show 13 more
  • Window Premium (1 Year)$11.991 Year
  • Window Premium (1 Month)$14.991 Month
  • Window Premium (3 Months)3 variants$19.993 Months
  • Window Premium (1 Year)$24.991 Year
  • Window Premium (1 Year)7 Days trial$39.991 Year
  • Window Premium (1 Year)7 Days trial$49.991 Year
  • Window Premium (1 Year)14 Days trial$49.991 Year
  • Window Premium (1 Year)7 Days trial$54.991 Year
  • Window Premium (1 Year)2 variants$59.991 Year
  • Window Premium (1 Year)$69.991 Year
  • Window Premium (1 Year)$79.991 Year
  • Window Premium (1 Year)7 Days trial$89.991 Year
  • Window Premium (1 Year)7 Days trial$99.991 Year

Questions

Is FastHabit Intermittent Fasting free?
FastHabit Intermittent Fasting is free to download, with in-app purchases available.
Is Window free?
Window is free to download, with in-app purchases available.
Which has better reviews, FastHabit Intermittent Fasting or Window?
FastHabit Intermittent Fasting is rated higher. FastHabit Intermittent Fasting averages 4.8 out of 5 from 14K ratings, while Window averages 4.5 from 11K ratings.
Do FastHabit Intermittent Fasting or Window have ads?
Neither FastHabit Intermittent Fasting nor Window shows ads.
Which is updated more often, FastHabit Intermittent Fasting or Window?
FastHabit Intermittent Fasting ships an update monthly, and Window monthly. Most recently, FastHabit Intermittent Fasting was updated on October 28, 2026 and Window on October 28, 2026.

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