Fastly - Fast Timer & Tracker
Intermittent Fasting & 16:8
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Intermittent fasting, without the clutter.
Fastly is a clean, private fasting timer built for people who want to stick to 16:8, OMAD, or any plan they choose — with beautiful widgets, real-time zone tracking, and zero ads or accounts.
Start a fast in one tap. Watch your body move through five fasting zones — from catabolism to deep autophagy. Build streaks, earn badges, and see your progress in charts that actually make sense.
FASTING, YOUR WAY
• Pick from 16:8, 18:6, 20:4, OMAD, 5:2, or build a custom plan
• Live circular timer with elapsed, remaining, and target
• Edit past fasts or log a forgotten one manually
• End a fast by voice with the Siri shortcut
SEE YOUR BODY'S RESPONSE
• Five fasting zones: Anabolic, Catabolic, Fat Burning, Ketosis, Autophagy
• Clear guide explains what's happening at each stage
• Gentle notifications when you enter a new zone
STAY MOTIVATED
• Streaks and weekly summaries
• 20 unlockable badges for consistency and milestones
• Calendar heatmap shows every fast at a glance
• Full history with notes on each session
TRACK YOUR WEIGHT
• Log in kg or lbs in one tap
• Visualize trends over weeks, months, or years
• Combined timeline of fasts and weight changes
WIDGETS + LIVE ACTIVITIES
• Home Screen widgets in Small, Medium, and Lock Screen sizes
• Live Activity keeps your fast visible on the Lock Screen and Dynamic Island
• Real-time countdown and zone status — no need to open the app
YOUR DATA STAYS YOURS
• Optional iCloud sync across iPhone and iPad
• No account, no ads, no tracking
• CSV export anytime (Pro)
FASTLY PRO
Unlock the full experience:
• Unlimited history (free tier shows last 30 days)
• Widgets
• Trend, Eating Window, Fasting Pattern, and Weight charts
• 30-day and yearly insights
• CSV export of all your data
PRIVACY FIRST
Your data lives on your device (and optionally your private iCloud). We don't collect, sell, or share anything. Ever.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://23apps.org/privacy/fastly
Ratings & Reviews
• NEW Apple Watch app with complications — start and end fasts from your wrist
• Siri & Shortcuts: "Start a fast in Fastly"
• Start fasts from widgets, end them from the Lock Screen
• Fasting schedules with start reminders
• Personal insights on your fasting patterns
• Save weight to Apple Health
• Fastly Pro: 14-day free trial, one yearly plan — existing users keep Pro free
• Crash fix for iCloud sync users, plus accessibility improvements
The developer, Tejas Patel, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tejas Patel
- Size
- 6.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Fastly Pro $2.99
- Copyright
- © 2026 23apps inc