FastKept: Fasting Tracker
Fasting timer & full history
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Track your fasts with a clear timer and a plan that fits your week.
What makes FastKept different?
• Every feature is completely free. No paywalls and no locked features.
• Home Screen widgets show the live clock under "Fasting". The medium widget also shows the goal end time, with wording such as "Your goal is 16 hours, so you're done at 12:58 PM." Lock Screen widgets show your running time and goal progress.
• Choose a weekday schedule with rest days, keep notes and mood with each fast, and export and restore your history through Files without an account.
Everything is free. The only thing you can ever pay for is removing ads for other Solstice Suite apps.
Choose a preset or a custom length, start and end a fast, and review week, month, and rolling range history. Keep optional water, weight, and mood logs. Set reminders and use a Live Activity while a fast is running.
Privacy
Fasts and logs stay on your iPhone unless you export them, enable the relevant Apple Health sharing, or choose an account backup. Local photos and records from Apple Health are excluded from online backups. This is a timer and journal, not medical advice; it does not measure ketosis or diagnose fasting stages. Optional supporter plans are billed by Apple through your App Store account, and the app checks subscription status with our purchase provider using purchase information and technical information. We do not send your personal app records to it. Crash and performance diagnostics help us fix problems; they exclude your identity, screenshots, and view attachments.
Optional ad removal
Removes ads in all our apps on this device. Choose $0.99 weekly, $2.99 monthly, or $19.99 yearly in the U.S.; local prices may vary. All features remain free. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your Apple Account subscription settings. Deleting the app does not cancel a subscription.
Support: support@solsticesuiteapps.com
Privacy: https://fastkept.com/privacy/
Terms: https://fastkept.com/terms/
Part of Solstice Suite. All features free. No account needed.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new in FastKept 1.1.1:
• Your history is safer. If FastKept cannot open your saved fasts, it keeps a copy and shows you what needs a look before anything is reset.
• A fast you walked away from now asks what you want to do with it, and long fasts show their length in days.
• Your weight trend shows one decimal place.
• You can rate FastKept from Settings. Now and then, after you finish a fast, FastKept may ask how you like it.
• Buttons you cannot use yet now look clearly unavailable.
• Edits you have not saved yet are kept in a recovery journal, so a failed save does not lose them.
The developer, Timothy Hess, 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
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Timothy Hess
- Size
- 17.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 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.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- Ad-free Supporter Yearly $19.99
- Ad-free Supporter Weekly $0.99
- Ad-free Supporter Monthly $2.99
- Copyright
- © 2026 Timothy Hess