Master Your
Metabolism

Master your metabolism with the most advanced intermittent fasting tracker: track fasting zones, visualize autophagy, and optimize your health.

Current Fast

Time Fasted 17:59:45
6 hours remaining
Sugar Burning

Understand Your Body

Visualize exactly what happens inside your body as you fast. Track your progression through proven metabolic stages.

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Completed

Catabolic

First 3 hours. Insulin drops, glycogen starts to deplete.

3h Mark
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Completed

Burning fat

Up to 12 hours. Fat becomes a major fuel source.

12h Mark
CURRENT STAGE
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Ketosis

After 18h. Fat is primary fuel. Mental clarity and focus increase.

In Progress 18h Mark
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Deep ketosis

After 24h. Full fat adaptation, peak ketone production.

24h Mark
APP INTERFACE

Everything you need
in one place.

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Smart Analytics

Visualize your weight trends and fasting consistency over time.

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Custom Notifications

Get alerted when you hit key metabolic milestones like Ketosis.

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Meal Logging

Track your eating window and calories seamlessly.

Current State
Autophagy ◇
Current State
Ketosis 🔥
info

Your body is switching to fat as its primary fuel source. Mental clarity and focus are increasing significantly.

Stage 3/5

Stay updated, effortlessly.

Seamlessly integrated with your device to keep your progress just a glance away.

Lock screen

Live Activity shows your fast on the lock screen.

Live Activity on lock screen Home screen

Your fasting status at a glance on the home screen.

Home screen fasting Small widget on lock screen

A compact widget on the lock screen for quick checks.

Small widget on lock screen

What to expect

Realistic outcomes from a consistent 24-hour fasting routine.

Example

3× 24-hour fasts per week, 8 weeks

For someone around 160 lbs, this pattern can support roughly 8–12 lbs of fat loss, depending on diet on eating days and activity.

8–12 lbs
typical range
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Insulin sensitivity

Fasting helps improve how your body uses insulin and manages blood sugar.

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Autophagy

Extended fasts support cellular cleanup and repair.

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Mental clarity

Many people report sharper focus once fat-adapted.

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Fat adaptation

Your body gets better at using fat for fuel during fasts.

Results vary by person. Consistency and what you eat on non-fasting days matter.

Pay once.

The other two are there so you can see what you're not signing up for.

Monthly

$0.99 /mo

Try the app with full flexibility—see if it’s right for you before committing to a lifetime purchase.

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  • cancel AI Coaching
Get Started
PAY ONCE, OWN FOREVER

Lifetime

$9.99 once

Pay once and own it forever. No subscription, no recurring fees.

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  • check_circle Advanced Analytics
  • check_circle AI Coaching
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