Window - Intermittent Fasting 4+

Fast Tracker & Eating Timer

ThrivePort, LLC

Designed for iPad

    • 4.5 • 10.6K Ratings
    • Free
    • Offers In-App Purchases


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 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!

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By using Window you agree to our Terms of Service and Privacy Policy.
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What’s New

Version 4.3.3

Make your intermittent fasting life easier with our new update.
Thank you for your continued support and comments! Do not hesitate to share your feedback with us via

Ratings and Reviews

4.5 out of 5
10.6K Ratings

10.6K Ratings

BlueEyeBird ,

So helpful!!

I love this app. I use it every single day. I am doing the OMAD but it does help to be able to leave a note when I eat a particularly high carb meal or I want to remember that I went somewhere in particular and that’s why my window might have been open longer than another day. I prefer to use the flexible window because of my work and family responsibility don’t always go hand and hand with a reliable time routine. The ability to have a scheduled or a flexible window is a great option for people who never quite know what the day will hold. Plus I never know if I’ll be satisfied after an hour or if I’ll need a little extra food that day, but I don’t feel the need to keep eating because my window hasn’t closed yet. This app helps me not only keep track of my window and fasting time, it also helps keep track of my weekly (sometimes daily) weights. It not only gives me a place to log in my weight, it also has a very clear and easy to read graph above it tracking my progress. When I haven’t lost much or barely an ounce or two and I start to get down about it, I look at the graph and it really is a pick me up to see that the line of the graft is still going downwards. I would recommend this app for anyone who is entering the IF or OMAD lifestyle. So much more handy than caring a notebook around.

tturtle2007 ,

Worth the price! Trust me!

I never buy apps, especially health ones. But since starting fasting, I wanted to find something to help me keep track of my fast on the go. I downloaded a bunch of free ones and they weren't what I wanted.

Window is very flexible and user friendly. You can set daily reminders for when your fast ends and begins. Lots of times I see it pop up and I'm able to check in with myself and change my Window to later because I'm not hungry yet. It's much easier than watching the clock waiting for the fast to be over, allowing food and time to be in control. Just set your times and you'll be reminded. So forgetting about eating time helps you be more engaged with your body.

I love how you can track your fast, see it on the calendar, and see your weight on a graph. It also syncs up with the Apple Health app. Best part is the author of "Delay, Don't Deny" Gin Stevens' son made the app. Definitely worth it when I seen that. Great book and happy to have an app to assist me further.

CarterDog ,

This USED to be a great app....

This used to be an amazing app. Now, it’s terrible. The developers obviously have never fasted themselves. If they had, they would know how the app SHOULD function! It should function EXACTLY like it used to before these money hungry developers took over. Do you know this used to be FREE???
Let’s say you have a four hour eating window. You eat and then after an hour you’re not hungry so you feel it’s safe to close your eating window, even though you could have another three (3) hours of eating. So you close your window on the app. But now, another hour goes by and you realize your still hungry! So you go to OPEN your eating window so you can eat but Guess what?? You CAN’T OPEN your eating window for another day because THEY SAID SO! 🤬 They only let you ONE TIME PER DAY! ARE YOU KIDDING ME? Is this app for ROBOTS?its certainly not for a human being that needs to re-open their eating window!! This app is WORTHLESS. You can get free versions that are so much better- like the “ZERO” app. Whoever is doing the new “developing” on this app is NOT improving it, they have made it AWFUL. DO NOT BUY IT. DO NOT EVEN USE IT. It’s GARBAGE. They should be ashamed with themselves !!
Get the ZERO app! It’s much more human being friendly AND IT’S FREE‼️

Developer Response ,


Thank you for reaching out in the comments and sharing your thoughts with us.

Kindly note that the app can be used for free, and purchasing a subscription is completely optional. You may decline the subscription offer and continue with the limited app version. We're sorry if there has been a misunderstanding. If you have troubles with restoring your previous membership, please let us know.
As for changing the time of eating windows, we'd really appreciate if you could get in touch with us via so we could look into the issue more profoundly. Thank you for understanding.

We're sorry that your experience with the app wasn't the one you expected. We'd really like to win your trust back.

Best regards,
Support team

App Privacy

The developer, ThrivePort, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases
  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Health & Fitness
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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