Fastology: Fasting Tracker
SmallScale Works LLC Health & Fitness iPhoneiPadiPod touchApple Watch
Fastology: Fasting Tracker is a free Health & Fitness app for iPhone and iPad by SmallScale Works LLC. Rated 4.9/5 from 12 ratings. Requires iOS 17.0.
- Rating
- 4.9
- 12 ratings
- Price
- Free
- on the App Store
- Size
- 40 MB
- Age 4+
- Updated
- Sep 24
- 2026 · v1.3.0
Screenshots
About Fastology: Fasting Tracker
Fastology is a fasting tracker for people who want more than a timer. Fasting works when it is structured. Fastology helps you track 16:8, 18:6, OMAD, and extended fasts with clear phase progress, streaks that reflect completed fasts, and a weekly schedule that fits real life. Most fasting apps count hours. Fastology helps you follow through. WHY FASTOLOGY Structured, not reactive Follow a clear fasting rhythm instead of making it up as you go. See where you are Track each phase of the fast with live progress, so you always know where you stand and what comes next. Consistency over intensity Build streaks from completed fasts and focus on repeatability, not random extremes. Flexible weekly schedule Set your fasting rhythm for the week, then adjust specific days when life changes. Clear, focused experience No clutter. No noise. Just the tools that matter when you want to fast with more discipline and less guesswork. WHAT YOU CAN DO • Track 16:8, 18:6, OMAD, and extended fasts • Follow live phase-by-phase progress • Build streaks from completed fasts • Set a weekly schedule and adjust specific days • Review your fasting history over time • Ask fasting questions with reviewed answers and linked sources • Start a fast, check your phase, or search Fastology from Siri, Spotlight, Shortcuts, and Ask • On supported devices, use Apple Intelligence to explore your fasting history Fastology is built for people who want to fast with more clarity, more structure, and more follow-through.
Ratings & reviews
4.9
12 ratings
What’s new
Version 1.3.0 · Updated September 24, 2026
We’ve improved account deletion, strengthened fasting time handling, and made updates across the app, widgets, and Live Activities more reliable. This release also includes general stability and performance improvements.
App privacy
The developer, SmallScale Works LLC, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction
- Health & Fitness: Health
- Contact Info: Email Address, Name
- User Content: Customer Support, Other User Content
- Search History: Search History
- Diagnostics: Crash Data
Used for: Analytics, Product Personalization, App Functionality
Alternatives to Fastology: Fasting Tracker
Looking for apps like Fastology: Fasting Tracker? Here are 6 similar apps on the App Store. The highest rated is Fasting Well: IF Timer (5.0/5), and all 6 are free to download.
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Just Fasting
4.0
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Fasting Well: IF Timer
5.0
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Fasting Works: AI Meal Log
5.0
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Intermittent - Fasting Tracker
5.0
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Nomu - Intermittent Fasting
4.8
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InnerFast - Fasting Companion
4.5
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Fastology: Fasting Tracker | 4.9 / 5 (12 ratings) | Free | September 24, 2026 | |
| Just Fasting | 4.0 / 5 (1) | Free | Apr 3, 2026 | Compare |
| Fasting Well: IF Timer | 5.0 / 5 (2) | Free | Sep 7, 2026 | Compare |
| Fasting Works: AI Meal Log | 5.0 / 5 (2) | Free | Sep 2, 2026 | Compare |
| Intermittent - Fasting Tracker | 5.0 / 5 (47) | Free | Oct 6, 2026 | Compare |
| Nomu - Intermittent Fasting | 4.8 / 5 (95) | Free | Oct 10, 2026 | Compare |
| InnerFast - Fasting Companion | 4.5 / 5 (4) | Free | Oct 6, 2026 | Compare |