Your fasting timer, plans and full history.
FastKept is being built as a free fasting timer that keeps your plans, full fasting history and progress on your iPhone. You control when a fast starts and ends.
ALL FEATURES ARE FREE. Use the app without an account. The free version will include only occasional, dismissible ads for other apps by the same developer. An optional subscription removes all ads and automatic signup reminders. No subscription is needed for app functionality.

What it does
Timer and eating window
Start and end fasts yourself and see your eating window. Elapsed time is calculated from saved times, so it stays accurate after a restart.
Presets, custom lengths and schedules
Choose a preset, set a custom duration or save a recurring schedule.
Full history, no cutoff
Browse your complete history in a calendar, with weekly, monthly and yearly summaries. Edit times or add a missed entry, and overlaps are checked.
Consistency without pressure
Optional schedule-based consistency tracking allows breaks and never rewards ever-longer fasts.
Optional logs and reminders
Add weight, water, mood or measurements if you want to, hidden when unused. Optional local reminders work without an account.
Export to CSV
Save a copy of your records as a CSV file whenever you like.
Privacy in plain words
Fasting records, plans and optional logs are planned to be stored on your iPhone without an account or server. Local data may be lost if you delete the app or lose your phone, so CSV export will be easy to find. Read the full privacy policy.
Availability
FastKept is in development for iPhone and is not on the App Store yet. This page will link to the App Store only once the app is published.
Questions
Can I download FastKept now?
Not yet. FastKept is in development for iPhone. This page describes what is planned; download details will appear here once the app is actually released.
Will I need to pay for anything?
No. ALL FEATURES ARE FREE. An optional supporter subscription ($0.99/week, $1.99/month or $19.99/year in the US) will remove ads and automatic signup reminders only. Final prices will follow the App Store listing and may vary by region.
Do I need an account?
No. The timer, history, plans, reminders and export are planned to work without an account or internet connection.
Does the app tell me when to eat or how long to fast?
No. You choose your plans and when fasts start and end. FastKept gives no personalized medical or diet advice and does not assume a fast was completed just because a timer ended.
Is my history backed up?
Records are stored on your device. Backup, restore and sync are not part of the current plan, so use CSV export to keep your own copy. We will update this policy before launch to match the released app.
Contact
Email support@fastkept.com.