Fastify - Fasting Weight Loss

Start your fasting journey today. Personalized 16:8, 18:6, 20:4 & OMAD plans built around your BMI. Lose weight the natural way — count hours, not calories.

Fastify is the intermittent fasting tracker built for lasting weight loss. Pick a plan, tap start, and watch the weight come off the natural way.

Unlike apps that count calories, Fastify helps you lose weight by timing your meals — a simpler, more sustainable approach backed by decades of research.

WHY FASTIFY

Fastify combines everything you need for successful intermittent fasting in one clean app: a personalized plan built around your BMI, a simple timer, weight tracking, hydration support, and gentle reminders. No calorie counting. No complicated setup. Just a focused fasting companion designed around how you actually live.

PERSONALIZED FASTING PLANS

Start with the plan that fits your body and lifestyle:

• 16:8 — the most popular fasting window
• 18:6 — for faster results
• 20:4 — the Warrior Diet
• OMAD — one meal a day
• 14:10 — perfect for beginners
• 5:2 — flexible weekly fasting
• Custom — build your own

Our fasting plan calculator creates a schedule tailored to you. No guesswork.

SIMPLE FASTING TIMER

Start your fast with a single tap. Track your fasting window and eating window in real time. Build streaks that turn into lasting habits.

WEIGHT TRACKING THAT WORKS

Log your weight and see progress charts that connect your fasting effort to real results. Watch your body transform through clear, honest data.

HYDRATION SUPPORT

Stay hydrated with built-in water tracking and smart reminders. Keep your energy steady during every fasting window.

SCIENCE-BACKED APPROACH

Fastify is built around widely studied fasting methods — supporting autophagy, ketosis, metabolic reset, and healthy insulin response. Designed for sustainable weight loss, not crash dieting.

WHO FASTIFY IS FOR

Fastify works for:

• Complete beginners starting their first fast
• Experienced fasters refining their routine
• Women managing weight through perimenopause and menopause
• Men looking for a no-nonsense weight loss tool
• Anyone ready to lose weight without counting calories

WHY USERS CHOOSE FASTIFY

• Count hours, not calories
• Personalized — not a generic template
• All four major plans supported
• Clean, focused, distraction-free
• Gentle reminders, never pushy

JOIN A FASTING CHALLENGE

Stay motivated with seasonal 30-day challenges. Build streaks, hit milestones, and turn small daily habits into lasting change.

Start your fasting journey with Fastify — pick a plan, tap start, and lose weight the natural way.

Fastify is for informational purposes and is not medical advice. Please consult a healthcare provider before starting any fasting program, especially if you are pregnant, breastfeeding, diabetic, under 18, or taking medication.