Simple Intermittent Fasting Tracker App
Take control of your health with intuitive eating timers, ketosis stages tracking, hydration logs, and smart reminders right on your smartphone.
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Personalize Your Fasting & Metabolic Goals
Evidence-based calculators to help you calculate your daily caloric expenditure, baseline metabolic burn, optimal hydration, and body composition targets.
BMI Calculator
Check your Body Mass Index against WHO clinical standards and evaluate your ideal healthy weight baseline.
Calculate BMITDEE Calculator
Determine your Total Daily Energy Expenditure using the Mifflin-St Jeor formula to set an accurate fat-loss deficit.
Calculate TDEEBMR Calculator
Find your Basal Metabolic Rate — the minimum calories your body burns at rest to keep your metabolism safe during fasts.
Calculate BMRWater Intake Calculator
Estimate your individualized daily fluid needs to prevent keto flu, electrolyte depletion, and dehydration while fasting.
Calculate HydrationMacro Split Calculator
Plan your macronutrient ratios for protein, healthy fats, and carbs tailored to your intermittent fasting eating window.
Explore MacrosFasting Timer & Stages
Track and understand biological fasting stages from ketosis to deep cellular autophagy with intuitive stage guidance.
View Fasting Timer