Great app!
I just started my fasting journey, but so far, this app is fun and simple to use! Love the super cute design!
Free
In-App Purchases
About
This app offers a simple and beautiful intermittent fasting timer with AI coaching to help users stay motivated and informed. It tracks fasts, indicates fat burn periods, and provides progress visualization and educational guidance.
✓Fasting timer with start, pause, and complete functions
✓Maximum Fat Burn Indicator
✓Customizable motivational posters
✓Weekly and calendar progress views
✓AI-powered fasting guidance
✓Clean and simple user interface
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What's New in Fasti
1.0.6
February 3, 2026
Improved UX * Added the ability to edit a fast in the Calendar widget.
Subscription plans
Fasti+ Monthly
Fasti+ Monthly Subscription
$9.991 Month
User reviews
FAQ
What is Fasti?
Fasti is a fasting tracker and timer designed to make intermittent fasting easy and motivating. It includes features like a fasting timer, fat burn indicator, progress tracking, and an AI coach.
How does Fasti help with fat burn?
Fasti includes a Maximum Fat Burn Indicator that helps users understand when their body may be reaching peak ketosis, aligning fasting windows with potential metabolic benefits.
Does Fasti have ads?
No, Fasti does not contain advertisements. The app is free to use with an optional subscription for premium features.
What devices does Fasti support?
Currently, Fasti is supported on iPhone devices.
How often is Fasti updated?
The latest version of Fasti is 1.0.6, and it was last updated on February 3, 2026. Updates typically occur to improve features and user experience.
Can I track my progress with Fasti?
Yes, Fasti offers weekly and calendar-based progress views to visualize completed fasts, streaks, and trends, helping users stay accountable.
What is the age rating for Fasti?
Fasti has an age rating of 4+, making it suitable for a wide range of users interested in health and fitness tracking.
How do I manage my Fasti subscription?
Subscription payments are charged to your iTunes Account. You can manage your subscription and turn off auto-renewal at least 24 hours before the end of the current period by going to your Account Settings.