Halfday: Fasting Tracker
16:8 timer, stages & streaks
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Free forever - the timer, the stages and ketosis never go behind a paywall. Ring, streaks with freezes, weight log. No ads, no tracking, no account to start.
Halfday is a fasting timer you'll actually keep using. Start a fast in seconds, watch the ring fill, and see what your body is doing at every stage — no quizzes, no coaching, no ads.
FREE FOREVER
The daily loop never moves behind a paywall. That's our pledge, in writing, inside the app.
• Count-up timer with a beautifully crafted progress ring
• Fasting stages marked right on the ring — including ketosis, free
• 16:8, 18:6 and 20:4 presets — pick one or ignore them, you're never nagged
• Forgiving streaks with automatic streak freezes, so one busy day never wipes your progress
• Weight log with a trend graph
• History and stats for your last 30 days
• Light and dark, at home on both
HALFDAY PLUS
When fasting sticks, Plus adds memory and depth:
• Full history and long-term stats, beyond 30 days
• Notes and journaling on every fast — how you felt, what worked
• Custom fasting durations from 12 to 72 hours
• Extended stage details for longer fasts
• Lock the app to light or dark, independent of your system setting
• CSV export — your data leaves freely, any time
Halfday Plus is $29.99 per year with a 7-day free trial, or $3.99 per month. The price on the paywall is the price you pay — no surprise charges, no fake discounts. Subscriptions renew automatically until cancelled; you can cancel any time in your App Store subscription settings, and your free features keep working either way.
HONEST BY DESIGN
• No ads, no tracking, no selling your data
• Sign in with Apple or Google keeps your fasts, weights and streak safely synced across reinstalls
• Local-first: the timer runs on your device and works offline; sync catches up when you're back
A NOTE ON HEALTH
Fasting isn't for everyone. Talk to your doctor before starting an intermittent fasting routine, especially if you are pregnant, under 18, or managing a medical condition. Halfday tracks time — it doesn't give medical advice.
Questions or feedback? We read everything: contact@quantdesk.in
HALFDAY PLUS SUBSCRIPTION
• Halfday Plus Annual: $29.99 per year, with a 7-day free trial
• Halfday Plus Monthly: $3.99 per month
• Payment is charged to your Apple Account when you confirm the purchase; the annual trial converts to a paid subscription after 7 days unless cancelled
• Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period
• Manage or cancel any time in your App Store account settings
• Prices may vary by region
Privacy Policy: https://quantdesk.in/privacy
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Quantdesk, 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
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Quantdesk Private Limited
- Size
- 52.9 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
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Halfday Plus $3.99
- Halfday Plus $29.99
- Copyright
- © 2026 Quantdesk