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Fast 2 Fit

Your Personal Fasting Guide
Bjoern Ruthberg · Health & Fitness
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App info

Developer
Bjoern Ruthberg
Category
Health & Fitness, Lifestyle
Released
Sep 22, 2026
Version
1.0 (Sep 22, 2026)
Price
$1.99
Size
17.3 MB
Requires
iOS 26.2
Age rating
13+
Languages
English and Norwegian Bokmål

In-app purchases

none
Current prices, App Store US.

About Fast 2 Fit

Transform your fasting journey with personalized guidance tailored to YOU. Fast 2 Fit is the intelligent intermittent fasting companion that adapts to your unique biology. Unlike generic fasting timers, Fast 2 Fit estimates personalized phase transitions based on your age, gender, activity level, and last meal type — so you get a timeline built around you, not a generic countdown. PERSONALIZED FASTING PHASES Your body is unique. Fast 2 Fit uses a personalized moderator system to estimate when you'll reach each biological phase: Absorption → Post-absorption → Ketosis → Autophagy → Deep Autophagy → Peak Autophagy A young, active person on a low-carb diet may reach estimated ketosis in as little as 5 hours, while others may take 22+ hours. Fast 2 Fit estimates YOUR timeline. EXERCISE INTEGRATION Log a workout during your fast? Fast 2 Fit reads your Apple Health workout data — no manual…
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