Waterfaster: Fasting Tracker
Intermittent, Water Fast Timer
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
See how many people are fasting with you right now. Add friends with a code, send boosts, chase challenges together — all anonymous. Backs up to Apple or Google.
Water fasting and intermittent fasting, made clear — and no longer something you do alone.
Start a fast with one tap and watch the live countdown on your Lock Screen, in the Dynamic Island and on your Home Screen widget. Follow what your body is doing hour by hour — fat burning, ketosis, cellular regeneration — based on published research.
FAST TOGETHER — ANONYMOUS BY DESIGN
• Live: see how many people are fasting with you right now
• Your Circle: add friends with a simple code, follow their fast live, send boosts and friendly nudges
• Groups & challenges: chase one goal together — from a 16:8 streak to a 7-day reset
• No profiles, no photos, no feed of strangers. You appear under a generated water name unless you choose otherwise.
YOU DECIDE WHO SEES YOU
Share everything, hide from one specific friend, or go invisible completely. One tap, any time.
NEVER LOSE YOUR PROGRESS
Link Apple or Google and restore your history, stats and circle on any device.
PICK YOUR PROTOCOL
• Intermittent: 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD
• Water fasting: 24h, 36h, 48h, 72h, 4, 5 and 7 days
• Flex: set or move your finish time while the fast is running
ALSO INSIDE
• Live Activity, Lock Screen and Home Screen widgets
• Apple Health: steps, sleep, heart rate, weight and water
• Hydration and electrolyte guidance during longer fasts
• Streaks, trends and your full weight history
• Personal insights and reminders you stay in control of
Waterfaster is not medical advice. Talk to your doctor before longer fasts, and never fast on medication without medical guidance.
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Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Service: https://waterfaster.app/terms
Privacy Policy: https://waterfaster.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Smoother launches
• Fixed an issue where the app could stay on the start screen until you switched apps. It now opens straight to your fast, every time.
• More reliable storage under the hood, so your history and settings stay put after a restart.
Recently added, in case you missed it:
• Live: see how many people are fasting with you right now
• Your Circle: add friends with a code, follow their fast live, send boosts and nudges
• Groups & challenges: chase one goal together
• Visibility: share everything, hide from one friend, or go invisible
• Account backup: link Apple or Google and restore everything on any device
The developer, AMIT Solutions, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- AMIT Solutions
- Size
- 61.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Infrequent
Medical Treatment information
Contains
User-Generated Content
Health or Wellness Topics
Social Media
- In-App Purchases
Yes
- Waterfaster+ $3.99
- Waterfaster+ $44.99
- Lifetime $89.99
- Copyright
- © 2026 Waterfaster
