Know exactly when your body switches to burning fat.
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 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.
Available on both iOS and Android. Open the app to start tracking immediately without needing a complex setup process.
Choose your eating and fasting hours. Start with 16:8 if you're new, or go straight to 20:4 if you're experienced.
Tap start when you finish eating. The timer tracks your progress and notifies you when your window opens. That's it.