FastWindow: Fasting Log

A clean fasting timer with a live ring, informational stage markers, water and mood notes, and the weekly consistency you can actually see. Private, on your iPhone.

FastWindow is a clean fasting timer built around a live ring you actually want to watch. Pick a window, start, and see exactly how long you have fasted and how long is left.

A journal, not a medical device. FastWindow keeps a private record of your fasts, water, and how you feel, all on your iPhone.

WHAT YOU GET

• A live fasting ring showing time elapsed and time to go against your target window
• Informational stage markers as the hours pass, clearly labelled as typical, general timings
• Presets for 16:8, 18:6, 20:4, and OMAD, plus fully custom windows
• Repeat your last window in a single tap
• Water quick-log during a fast, one tap per cup
• Hunger and mood notes so you can see how a fast really felt
• A full history of finished fasts, each with its real length next to the target, with filter and search
• A weekly fasting goal with progress you can watch
• A consistency calendar that fills in day by day as you finish fasts
• Weekly charts, current and longest streak, your target-met rate, and personal records
• Export a summary PDF or a CSV of every fast, to keep or share
• Start and end reminders, and an edit-start-time control for when you began earlier or later

FREE AND PRO Free includes the full live ring, every preset (16:8, 18:6, 20:4, OMAD), one-tap repeat, water logging, a weekly goal, and your complete history with filter and search. Pro unlocks fully custom windows, hunger and mood notes, and Trends: the consistency calendar, weekly charts, streaks, personal records, and PDF and CSV export.

PRIVATE BY DESIGN No account, no cloud, no tracking. Everything you enter stays on your iPhone.

INFORMATIONAL ONLY FastWindow is a timer and journal, not medical advice. The stage markers are general, typical timings shown for information only; they do not measure or describe what is happening in your body. Fasting is not right for everyone. Talk with a healthcare professional before you start or change a fasting routine, especially if you are pregnant or breastfeeding, are managing a health condition, take medication, or have a history of disordered eating.

SUBSCRIPTION FastWindow Pro is available as a monthly or yearly auto-renewing subscription, or a one-time Lifetime unlock. The price and billing period are shown in the app before you buy, in your local currency. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically until cancelled. Manage or cancel anytime in Settings > Apple Account > Subscriptions; cancellation takes effect at the end of the current period. Privacy Policy: https://ino50-forms.admin-cloudflare-fa0.workers.dev/a/fastwindow/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/