Comparison

Window vs Fasting Clock

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

Head to head
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

About

Fasting Clock

Features
Read full description

Fasting Clock is a clean, simple intermittent fasting tracker that helps you build a fasting habit that sticks — no account, no complicated setup. Start a fast in one tap, watch the live progress ring, and always know how much time is left. See which fasting phase you are in — Fed, Fat Burning, Ketosis, Deep Ketosis — and stay motivated with streaks, badges and insights. WHY PEOPLE LOVE IT • One-tap fasting timer that keeps running even if the app is closed • Live Activity, Dynamic Island and home screen widget — check your fast without opening the app • Gentle reminders: ketosis reached, one hour left, fast complete • Streaks and badges that reward consistency FASTING PLANS • 16:8 (Leangains), 18:6, 20:4 (Warrior), 23:1 (OMAD) • Custom fasts from 1 to 72 hours • Adjust the start time if you forgot to tap Start TRACK YOUR PROGRESS • Insights: fasting chart, completion rate, best streak and phase reach • History of every fast, completed or ended early • Water tracker with a daily goal • Weight log with trend chart • Fasting journal to note how you feel • Daily fasting schedule • Export your data to CSV DESIGNED FOR EVERY SCREEN • iPhone, iPad and iPhone Duo — inner and outer display • Light and dark mode • English and Indonesian FASTING CLOCK PREMIUM Unlock all fasting plans, 30- and 90-day Insights, CSV export, schedule reminders and an ad-free experience. Subscriptions are available weekly, monthly or yearly. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. DISCLAIMER Fasting Clock is for informational purposes only and is not medical advice. If you have a medical condition, are pregnant or breastfeeding, or are under 18, consult a healthcare professional before fasting. Privacy Policy: https://diponten.com/2026/01/16/fasting-clock-timer-streaks/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Window4 screens
Fasting Clock4 screens

Verdict

The call

The clearest difference is ads: Window at none against Fasting Clock's shown. Window also leads on update cadence (monthly vs every 5 months). On price, in-app purchases, device support and iOS requirement 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. Window sells 9 in-app purchases, starting at $4.99 per 7 days and Fasting Clock sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Window ships an update monthly, Fasting Clock every 5 months. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

Scorecard2 real differences · 8 level
Window versus Fasting Clock: the parameters behind the verdict, then further details
ParameterWindowFasting Clock
PriceFreeFree
Rating4.5 (11K ratings) — better—
Positive reviews22.0% of reviews—
Number of ratings11K — better—
Update frequencyMonthly — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size131 MB27 MB
Age rating17+4+
DeveloperMosaic S.r.l.Afriwan Ahda

Bugs and requests

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

Fasting Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Window

Subscriptions9
  • Window Pro Weekly$4.997 Days
  • Window Pro Weekly7 Days trial$4.997 Days
  • Window Premium (1 Month)$14.991 Month
Show 6 more
  • Window Premium (1 Year)7 Days trial$39.991 Year
  • Window Premium (1 Year)7 Days trial$49.991 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
3 purchases

Fasting Clock

Subscriptions3
  • Weekly Premium Access$0.997 Days
  • Monthly Premium Access$2.991 Month
  • Yearly Premium Access$17.991 Year

Questions

Is Window free?
Window is free to download, with in-app purchases available.
Is Fasting Clock free?
Fasting Clock is free to download, with in-app purchases available.
Do Window or Fasting Clock have ads?
Fasting Clock shows ads; Window does not.
Which is updated more often, Window or Fasting Clock?
Window ships an update monthly, and Fasting Clock every 5 months. Most recently, Window was updated on November 14, 2026 and Fasting Clock on November 13, 2026.

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