Waterfaster is built for water fasting and intermittent fasting. Track your fast, stay hydrated, and see how your body responds — all in one app.
WATER FASTING TIMER
Start your fast and follow your body in real time. See what's happening inside as the hours pass — from fat burning to autophagy.
INTERMITTENT FASTING
16:8, 18:6, 24h, or custom. Great as a daily practice or as preparation for longer water fasts.
HYDRATION
Log water and electrolytes throughout your fast. Staying hydrated matters — Waterfaster keeps you on track.
WEIGHT AND MOOD
Log your weight and mood to see how your body and mind respond to fasting.
CHALLENGES AND STREAKS
Take on fasting challenges, build streaks, and hit milestones.
ANALYTICS
Your fasting history, weight trends, and hydration in clean, simple charts.
No account needed. All data stays on your device.