Fast Forward Evolution
Fasting, Keto & Fat Burn Timer
About
Track your fasting and keto diet simultaneously with a visual representation of your progress. Log meals, monitor metabolic phases, and access health data. Features include lock screen widgets, Apple Watch integration, and a comprehensive knowledge base.
What's New in Fast Forward Evolution
2.0.2
November 13, 2026
Security and privacy improvements, and small fixes.
Developer apps
FAQ
What is Fast Forward Evolution?
Fast Forward Evolution is a free app designed to help you track your fasting periods and ketogenic diet simultaneously. It visually shows your progress through different metabolic phases, from fed state to deep ketosis.
How does Fast Forward Evolution track fat burn?
The fat burn ring in Fast Forward Evolution starts after 13 hours of fasting and continues as long as your carb intake remains at 49g or less. This allows you to monitor your body's transition into fat-burning metabolic states.
Can I see my progress on my lock screen or Apple Watch?
Yes, Fast Forward Evolution offers live home-screen and lock-screen widgets, as well as a live timer for your lock screen and Apple Watch. You can also start or end your fast directly from your wrist.
How does meal logging work in Fast Forward Evolution?
You can easily log meals by searching thousands of foods or scanning barcodes. The app automatically totals net carbs, protein, and calories. Logging a full meal will end your fast, but small additions like cream in coffee will not.
Does Fast Forward Evolution integrate with Apple Health?
Yes, the app connects with Apple Health to import weigh-ins from smart scales, save logged weights, and display your daily step count. It also allows you to export your data to Excel.
Is there a cost to use Fast Forward Evolution?
Fast Forward Evolution is completely free to use and does not require a subscription. It also does not contain any advertisements.
What kind of health information is available in the app?
The app includes a built-in library with nearly 200 offline answers covering topics like fasting, keto, carnivore diets, electrolytes, hunger, plateaus, and safety. It also allows you to log blood ketones and glucose to see your GKI.
Is my data private with Fast Forward Evolution?
Yes, the app is designed for privacy with no account needed. Your fasting, food, weight, and health data remain on your phone, ensuring it stays private.
