An Intermittent Fasting Timer That Only Answers One Question: When Can I Eat?

You finished dinner at eight and you are doing 16:8. What you want to know is when your eating window opens. Fast shows that on one big ring, keeps your streak, and asks for no account, no email and no yearly plan.

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The problem

Most people who fast on a schedule need two things: a countdown and a record of how it went. Popular fasting apps bundle those with profiles, coaching feeds and recurring plans, and ask you to hand over your weight and eating habits to an account on someone else's server. Many people would rather not share when they eat with anyone. And a surprising amount of that design pushes harder, longer fasts as if more were always better, which is not true for everyone and is risky for some.

How Fast (Intermittent Fasting Timer) works

• The first time you open Fast, it asks one safety question: are you under 18, pregnant or breastfeeding, living with or recovering from an eating disorder, or taking medication for diabetes? If any of those apply, the timer does not open, and the app suggests talking to a doctor instead.
• Pick your rhythm once: 14:10, 16:8, 18:6, 20:4, one meal a day, or your own between 12 and 24 hours. That becomes your default.
• Tap Start when you finish eating. The ring fills towards your goal and the line underneath tells you the exact time you can eat. Forgot to start? Set the start time back — the ring updates instantly.
• Tap End when you eat again. Reach your goal and the day turns solid on your calendar and your streak grows; stop early and it is saved honestly as not reached, with no scolding.

What you get

• Time that stays rightFast measures from the exact moment you started, not from wall-clock arithmetic, so it stays correct after you close the app, restart the phone, or fast through the night the clocks change for daylight saving. Sixteen hours is always sixteen real hours.
• Phases described plainly, with sourcesHour marks on the ring point to short, general descriptions of what research says tends to happen — digesting, settling, switching fuel — with the papers listed. They are information, not goals, and the app says clearly that timing varies from person to person and that feeling unwell is a reason to stop and eat.
• Streak, calendar and a weekly cardYour streak counts days you reached your goal. The calendar shows reached days filled and shorter fasts outlined, and once a week you can make a clean image card of your week — goal days, total hours, longest fast — to keep or share.
• Pro for $1, oncePro adds your full history beyond 30 days, a chart of your fasting hours, an optional weight log with its own chart, daily calendar reminders as an .ics file for the calendar app you already use, the weekly card without the 1usd.life mark, and a passcode that encrypts your data with AES-256. One dollar, paid once.

Private by design

Fast has no account and no server. Your fasts, your streak and your weight (if you choose to log it) live in your browser's storage on your own device and are never sent anywhere; the only network call the app ever makes is a one-time licence check if you unlock Pro. Reminders are a calendar file you add to your own calendar, not push notifications from us. Fast is a timer, not medical advice: it has no diet plans, counts no calories and promises no results. It is not for anyone under 18, pregnant or breastfeeding, taking medication for diabetes, or with an eating disorder now or in the past — and if food or eating feels hard right now, talking to a doctor or someone you trust is worth more than any app.

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