Flint: Fasting Timer & Tracker
Body Fat Burner & Weight Loss
About
This app helps you track intermittent fasting with a visual timer and personalized insights. It guides you through fasting phases, logs your daily habits, and offers tools to manage hunger. Unlock advanced analytics and recommendations with a Pro subscription.
What's New in Flint
1.7
July 12, 2026
NEW: Schedule your first fast on a beautiful circular dial. Drag the arc to choose when your fast begins and when your eating window opens. Flint starts the fast for you, right on time. Also in this release: • Day streak hero on your Progress screen. Watch it grow. • Bug fixes and polish.
MoreSubscription plans
Fast Pro Yearly
Premium fasting insights and personalized guidance.
Developer apps
FAQ
What fasting protocols does Fast support?
Fast supports several proven protocols including 16:8, 18:6, 20:4, and OMAD. You can also create your own custom fasting schedule to fit your needs.
How does Fast help with hunger during fasting?
When hunger strikes, Fast offers guided 4-7-8 breathing exercises, evidence-based hunger management tips, and activity suggestions to help you push through and complete your fast.
What kind of insights does Fast provide?
Fast uses an AI-powered engine to analyze your logged data, identifying correlations between your habits and fasting success. It provides personalized recommendations based on your unique patterns.
Is my data private with Fast?
Yes, Fast prioritizes privacy. All your data stays on your device, no accounts are required, and no data is sold. Your fasting journey is kept private.
What is Fast Pro?
Fast Pro unlocks advanced analytics and personalized insights. Pro members gain access to deeper trend analysis, expanded milestone breakdowns, and tailored recommendations for a more optimized fasting experience.
How much does Fast Pro cost?
Fast Pro is available as an annual subscription for $29.99 per year. New subscribers receive a 3-day free trial.
Can I cancel my Fast Pro subscription?
Yes, you can manage or cancel your subscription anytime in your App Store account settings. The subscription auto-renews yearly unless cancelled at least 24 hours before the current period ends.
What is the age rating for Fast?
Fast has an age rating of 17+, which is common for health and fitness applications that may involve discussions of weight loss and body metrics.