FastSloth: Fasting Tracker

16:8 Timer, Hydration & Weight

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

New themes are here. Choose a look you love or build your own with the new Theme Builder. FastSloth stays private, simple, and subscription-free. No account. No subscription. No data leaves your phone. FastSloth is a private intermittent fasting tracker with fasting insights, hydration and weight tracking, Home Screen widgets, and **custom themes with a Theme Builder**. Start fasting in one tap. ## NEW: THEMES & THEME BUILDER Choose a built-in theme or create your own. Customize colors and appearance with the new Theme Builder and make FastSloth feel like yours. ## FASTING MADE SIMPLE Start with one tap. Choose 16:8, 14:10, 18:6, 20:4, OMAD, or create a custom fasting schedule. See estimated fasting stages as you progress, including fat burning, ketosis, and autophagy. ## HYDRATION Log water in seconds, track daily progress, and set hydration reminders. See your progress from the Home Screen with the hydration widget. ## WEIGHT & INSIGHTS Track your weight over time with simple charts that make trends easy to see. ## SMART NOTIFICATIONS * Fast start and end alerts * Fasting stage notifications * Water reminders ## STREAKS & MILESTONES Track completed fasts, build streaks, and unlock milestone badges. ## HOME SCREEN WIDGETS See your current fast, hydration progress, and streak without opening the app. ## PRIVATE BY DESIGN No account. No subscription. Your fasting history, weight, hydration logs, and settings stay on your device. ## FASTING PROTOCOLS * **16:8** * **14:10** * **18:6** * **20:4** * **23:1 / OMAD** * **Custom schedules** Private. Personal. Lightweight. **Download FastSloth and start fasting your way.**

Ratings & Reviews

  • 5.0
    out of 5
    4 Ratings

- Added a confirmation before discarding unsaved theme changes. - Fixed the theme color picker’s eyedropper tool. - Improved error feedback when a premium purchase can’t be completed.

Version 2.0.1

The developer, Darren Paul, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Purchases
    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Larger Text

    • Dark Interface

    • Differentiate Without Color Alone

    • Sufficient Contrast

    • Reduced Motion

Information

Seller
  • Darren Paul
Size
  • 11.4 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 26.0 or later.
  • iPhone
    Requires iOS 26.0 or later.
  • iPad
    Requires iPadOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.0 or later.
Languages
English and 2 more
  • English, German, Spanish
Age Rating
13+
  • 13+
  • Learn More
  • Infrequent
    Medical Treatment information

    Contains
    Advertising
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
  • © 2026 Darren Paul
  • Developer Website
  • Privacy Policy

    • More by Darren Paul

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