No. The timer works offline after install. There is no Night Fast login.
Help
Support
Night Fast has no in-app chat and no user accounts. Email us. We read every message.
Include your device, iOS version, and what you tapped if something broke.
Common questions
On this phone only. Fasting times and optional body notes stay in local storage. There is no Night Fast server copy in this version.
In the app: More → Reset. Uninstalling Night Fast also removes local storage. Because there is no account, there is nothing for us to erase on a server.
Start after your last meal, even at 2:00 or 7:00. If you forgot to tap Start, use 1h / 4h / 8h ago. The clock follows you, not an office lunch.
Water first. Many people keep black coffee or unsweetened tea. Anything with sugar, milk, juice, or protein powder is food and ends the fast.
They must not. Apple forbids using health or fitness data to target ads. Free may show ads; they have to be labeled and skippable.
No. It is a timer plus educational notes in Health & Fitness. It does not diagnose, treat, or measure blood pressure or glucose with phone sensors.
Do not treat long fasts as a default. Talk to a clinician. The app cannot see those signals and is not medical care.
Medical note
Night Fast is a timer and short educational notes. It is not a medical device and does not diagnose or treat disease. Do not use long fasts as a default if you are pregnant, breastfeeding, underweight, or have a medical condition — talk to a clinician.