Tracking the metabolic window.

Fastual is a focused fasting timer designed for clarity and ease of use. Monitor your progress with a minimalist interface built for long-term health visibility.

Fastual App Dashboard

Get Started in Minutes

1. Download Fastual

Available on both iOS and Android. Open the app to start tracking immediately without needing a complex setup process.

2. Set Your Fasting Window

Choose your eating and fasting hours. Start with 16:8 if you're new, or go straight to 20:4 if you're experienced.

3. Start Your First Fast

Tap start when you finish eating. The timer tracks your progress and notifies you when your window opens. That's it.

Support

Questions about the app or found an issue in the code? Get in touch.