Stupid Simple Fasting is the easiest intermittent fasting tracker ever. Find the fasting rhythm that works for you and discover the easiest way to lose weight, find mental clarity, and save money on groceries while you're at it.

Stupid Simple Fasting features several different fasting options:

16-Hour Intermittent Fast: A popular and easy to follow fast for maximizing fat loss. You can eat your dinner, then start the fast until lunch time the following day.

24-Hour Fast: Push yourself towards making your fitness goals and break your reliance on the emotional need for food. You’ll feel accomplished and lighter as you make your 24-hour fast.

Custom Fasting: Setup a custom program to meet your particular fasting goals. You can choose your fasting duration and then start your fast when you are ready.

After you create a custom fast, you can even make it a favorite for quick access next time.

Our new scheduling system automatically starts and stops your fasts for you so you can track your fasting even easier now!

Additional features:

*Track your water and salt throughout your fast.

*Get reminders when it's time to start a new fast.

*Helpful motivation when you need it with a simple button tap.

*Sync your fasting app with other devices.

*Works great across time zones for all of your travels.

*Take before and after photos to track your results.

*Review your history to look for areas for improvement.

Integrates with our other fitness apps, Stupid Simple Keto, Stupid Simple Macros, and Stupid Simple Paleo.

Why fast anyway?

Fasting is a terrific way to retrain your mind and body to eat only when you are truly hungry. From a scientific standpoint, fasting is the metabolic state where you have completed the digestion and absorption of a meal (around 3 to 5 hours after eating). While you fast, your body continues to burn excess fat. You might start out fasting from dinner to breakfast, and then work towards fasting from dinner to lunch. With practice, you can fast for longer periods of time. It’s important to only use fasting for healthy weight loss. Fasting can be deadly for people under the normal recommended weight for their age and gender.

You can use fasting with most diets. A popular combination is using fasting with the Ketogenic diet since the Ketogenic diet is already burning fat for fuel. There are also different durations for how long to fast. A popular choice to start out with is the 16 hours fasting/8 hours to eat window that lasts each 24 hour cycle. Once you conquer this you can consider trying out intermittent fasting where you’ll fast for 18 hours in between each meal. If you eat dinner the night before then you can start your next meal as a late lunch lunch, and so on. There are several other extended durations for fasting. We recommend starting out slowly, feeling confident with the duration and then making adjustments to fast for a longer time.

Fasting isn’t appropriate for everyone. Please consult your doctor before starting a fast. This is especially important if you are diabetic. We are only here to help you track, your doctor is there to help you do it safely.

What’s New

Version 1.4

The best intermittent fasting tracker just got better! Introducing our new scheduling system. Setup your fasting schedule once and we'll automatically start & stop your fasts plus send you helpful reminders. As always, Stupid Simple Fasting integrates seamlessly with Stupid Simple Keto for the ultimate weight loss system.

Ratings and Reviews

4.8 out of 5
75 Ratings
75 Ratings
alexmatskii ,

Diets and health

To lose the weight and find the best diet for me always was very exciting.
This application helps me to track what and when I eat. Besides, it is pretty funny designed and have the clear interface. I really like this tracker because I noticed that I have already lost weight a bit after starting to use it.

Prinkles ,

Lose weight easier

It fixes a precise time when you hungry after analysis and immediately stand you in a way of diet program. Which is pretty cool as you can easily start a diet to lose weight. App tracks water and salt amount and then motivate to eat. And of corse provide photos before and after to show evident result of you gain it.

Developer Response ,

Thank you for sharing your review. We're really glad to hear that you enjoy being able to track your fast, while also tracking your water and salt levels.

Agatha Addington ,

For those who can’t lose weight

I talked to those who practice fasting, and among other tips they recommended me this app to start with. I try to fast from time to time when I can and want to, but I lose weight every day, I could not achieve such amazing results even with intensive training.

Developer Response ,

Agatha, thank you for sharing your nice review. We're really glad to hear that you are seeing great results with the app, combined with fasting and exercise.


Venn Interactive, Inc.
127.1 MB
Health & Fitness
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© Venn Interactive, Inc.
In-App Purchases
  1. Fasting Pro $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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