Fasting Tracker vs Fastly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Tracker
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Take control of your health with FastingAi, the ultimate intermittent fasting companion. Whether you're new to fasting or a seasoned pro, our easy-to-use timer helps you reach your wellness goals. Key Features: * Customizable fasting schedules * Real-time fasting tracker with progress bar * Multiple fasting protocols including 16/8, circadian rhythm, and more * Fasting history log to track your progress * Reminders to start and end fasts * Clean, intuitive interface Fast Track supports popular fasting methods: * 13-hour Circadian Rhythm Fasting * 16-hour Time-Restricted Eating * 18-hour Extended Fasting * 20-hour Warrior Diet * 36-hour Prolonged Fasting Start your fasting journey today with FastingAi - your personal guide to a healthier lifestyle through timed nutrition. Download now and unlock the potential of intermittent fasting!
Fastly
This app provides a clean and distraction-free timer for intermittent fasting. It tracks your fasting periods in real-time, offers various popular fasting plans, and automatically monitors fasting phases like fat burning and ketosis. View your history with clear statistics and receive smart reminders.
- Clean fasting timer with real-time tracking
- Multiple intermittent fasting plans
- Automatic fasting phase tracking
- Fasting history with statistics
- Smart reminders for goals
- Minimalist interface
- Dark mode support
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Fastly is a clean, private fasting timer for 16:8, 18:6, OMAD, and custom schedules—without ads, accounts, or distractions. Start a fast with one tap, adjust your start or end time when needed, and see your elapsed time, remaining time, and planned finish at a glance. Fastly keeps the experience focused while giving you the tools you need to understand your routine and track your progress. FOLLOW YOUR FAST See estimated fasting phases based on your elapsed fasting time, including digestion, fat burning, ketosis, and autophagy. Upcoming phase markers make it easy to see what comes next during your fast. TRACK YOUR PROGRESS Review your complete fasting history through clear statistics, charts, and progress insights. Set weight and body fat goals, and optionally connect Apple Health to keep your measurements organized. STAY ON TRACK EVERYWHERE Follow your fasting status from your iPhone, Apple Watch, Home Screen widgets, and complications. Smart reminders help you stay aware of fasting goals and eating windows without unnecessary interruptions. KEY FEATURES • Real-time fasting timer with elapsed and remaining time • Planned fasting end time displayed at a glance • 14:10, 16:8, 18:6, 20:4, OMAD, and custom plans • Estimated fasting phases for digestion, fat burning, ketosis, and autophagy • Upcoming fasting phase markers • Complete fasting history with statistics and charts • Weight and body fat goals with progress benchmarks • Apple Health integration for weight and body fat • Apple Watch app and complications • Home Screen widgets for quick progress checks • Smart fasting and eating-window reminders • Optional private iCloud synchronization • Dark mode and a clean, focused interface PRIVATE BY DESIGN No ads. No third-party analytics. No developer data collection. Your fasting and health information stays on your devices and, when optional synchronization is enabled, in your private iCloud account. IMPORTANT NOTE Fasting phases are estimates based on elapsed time and can vary from person to person. Fastly is intended for general wellness and fasting tracking only. It does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before making medical or dietary decisions.
Screenshots
Verdict
The clearest difference is in-app purchases: Fasting Tracker at none against Fastly's 4. Fasting Tracker also leads on update cadence (every 4 days vs every 10 days) and iOS requirement (15.3 vs 17.6). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fastly sells 4 one-off in-app purchases. Fasting Tracker asks for nothing beyond the download.
Fasting Tracker ships an update every 4 days, Fastly every 10 days. Both last shipped on October 6, 2026.
| Parameter | Fasting Tracker | Fastly |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (92 ratings) — better |
| Positive reviews | — | 94.1% of reviews |
| Number of ratings | — | 92 — better |
| Update frequency | Every 4 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.3 — better | 17.6 |
| Further details — not scored | ||
| Size | 42 MB | 9 MB |
| Age rating | 17+ | 12+ |
| Developer | Days Until LTD | Collweb LLC |
In-app purchases
Fasting Tracker
No in-app purchases
Fastly
- Coffee$1.99
- Lunch$4.99
- Become a Supporter$4.99
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- Dinner$9.99








