Fastio – Fasting Tracker

Pick your protocol, tap start, and Fastio tracks every hour of your fasting and eating window — with streaks and history to keep you consistent.

Intermittent fasting works best when you actually know where you are in the window. Fastio is the clean, no-fuss timer that tracks your fast from the first hour to the last — so you can just follow your plan.

Pick a protocol like 16:8, 18:6 or 20:4, tap to start, and Fastio counts your fasting and eating windows for you. See your current stage at a glance, keep a streak of completed fasts, and look back over a history that shows how consistent you've really been.

WHY FASTIO

• Always know your window. A clear timer shows exactly how long you've fasted and what's left. • Popular protocols, ready to go. 16:8, 18:6, 20:4, OMAD or set your own hours. • Build a streak. Completed fasts add up into a record that keeps you consistent. • Simple and calm. No noise, no clutter — just your fast and your progress.

WHAT YOU GET

• A fasting timer with start, end and elapsed stages • Preset protocols plus fully custom windows • Streaks and a full history of your fasts • Daily and weekly consistency at a glance • Optional reminders to start and end your window • Notes to log how each fast felt

Fastio is a timing and tracking tool, not medical advice. Talk to a doctor before changing how you eat, especially if you have a health condition, are pregnant or take medication.

FREE AND PREMIUM

Fastio is free to time your fasts. Premium unlocks unlimited history, custom protocols and reminders — as a monthly or yearly subscription, or a one-time purchase. Exact prices are shown in the app before you pay.

Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account, and you can manage or cancel your subscription in your App Store account settings at any time. Restore Purchases always works.

Start the timer, follow your window, build the streak. Fastio keeps the count.

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