See Your Lean Future Self
Selfie in. AI prediction out. See what you'll look like when you stop feeding insulin — and how long it'll take.
Powered by metabolic science from Ben Bikman, Jason Fung & more
12 WEEKS
Your Lean Future Self
Make a selfie — our AI predicts your lean future self and shows exactly how many weeks of fasting and carb control it will take.
Fasting Timer
14:32
of 16:00 goal
Fat Burning Mode
3
Day streak
91%
On target
1:28
Until goal
Fasting Timer & Metabolic State
Track your fasting window and watch your metabolism switch in real time — from sugar burning to fat burning to deep ketosis. The Meta Lizard shows your state.
Meal Scanner
High insulin spike
Refined pasta + sugar sauce
Try instead
Zucchini noodles + olive oil
Scanning meal...
Snap a Meal, Know Instantly
Take a photo of any meal. Our AI tells you instantly whether it will spike your insulin or keep you in fat-burning mode.
Daily Check-in
Last meal
6:42 PM
5h 18m ago · Fasting window started
Energy level
Sugar cravings?
Metabolic score
82/100
10 seconds · Done for today
Smart Daily Check-in
Log how you feel in seconds. No calorie counting — just quick metabolic check-ins that feed your personalized timeline.
Your Data. Your Device.
Photos & health data stay on your phone
End-to-end encrypted
Never sold. Delete anytime.
Private & Secure
Your health data stays on your device. Encrypted. Never sold. Delete anytime.
12 WEEKS
Your Lean Future Self
Make a selfie — our AI predicts your lean future self and shows exactly how many weeks of fasting and carb control it will take.
Calories Aren't the Problem.
Insulin Is.
Lower insulin → burn fat. It's that simple. MetaFy tracks and guides the whole process.
Fast & Control Carbs
Intermittent fasting + fewer carbs = lower insulin. Lower insulin = your body burns stored fat for energy.
AI Body Prediction
Take a selfie. Our AI shows your lean future self — based on real metabolic science, not guesswork.
Your Fat-Burning Timeline
Know exactly how many weeks to reach your goal. Real deadlines, not vague promises.
Snap a Meal, Know Instantly
Photograph your food. AI tells you: fine to eat, or will it spike your insulin?
Backed by Real Science
MetaFy is built on peer-reviewed research from the world's leading metabolic scientists.
Prof. Dr. Ben Bikman
BYU · Why We Get Sick
Proved insulin resistance — not overeating — drives obesity and metabolic disease.
Dr. Jason Fung
Nephrologist · The Obesity Code
Showed intermittent fasting is the most powerful tool to lower insulin and unlock fat burning.
Dr. Robert Lustig
UCSF · Metabolical
Exposed how sugar and processed carbs drive chronic insulin elevation and fat storage.
Dr. Peter Attia
Longevity MD · Outlive
Champions metabolic flexibility — the ability to switch between glucose and fat burning.
Dr. Stephen Phinney
UC Davis · Low-Carb Pioneer
Pioneered fat-adaptation research — restrict carbs, drop insulin, become a fat-burning machine.
The Metabolic Switch
The Core Principle
Fast + control carbs → insulin drops → body burns stored fat. This is metabolic flexibility, and it powers every feature in MetaFy.
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First to download. Plus a 25% launch discount.
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Lifetime Access — Just $99
Only 999 lifetime accounts will ever exist. One payment. All future features. No subscriptions. Ever.
one-time payment · lifetime access