Every fast, every stage, in one beautifully simple timer. No ads, no upsells in your face, no data leaving your phone.
Free to use. Pro tier coming soon.
Every screen designed with the same care. Built native, feels native.
The center of gravity. Stage-aware ring, tabular numerals, glanceable.
Weekly bars and every fast you've completed — no streak-shaming.
Six accent palettes, three themes, every notification opt-in.
Not another habit tracker pretending to be a fasting app. Built from the ground up for intermittent fasters who want clarity, not noise.
Watch yourself move through anabolic, catabolic, ketosis, autophagy and beyond — the ring shows exactly where you are.
iOS Live Activity and home-screen widgets show your current hour without ever opening the app. Android widget too.
Log fasts, weights, moods. Trend lines, weekly bars, and gentle streak tracking — never guilt-tripping you.
Your fasts and weights live on your phone. Optional anonymous analytics, fully opt-out, no third-party trackers.
Free forever for everything that matters. Pro tier is a small one-time supporter price — not a $12/month treadmill.
Built to feel like Apple Health and Things 3 — typography, motion, haptics, all considered. Just a joy to use.
Fasting isn't a single state — it's a sequence of physiological shifts. The app shows where you are right now, and what's next.
Your body absorbs and stores energy from your last meal. Insulin is still elevated.
Stored glycogen starts depleting. Energy levels even out as your body shifts gears.
Glycogen runs low and your liver starts producing ketones from fat. Mental clarity often shows up here.
Cellular cleanup ramps up: damaged cells are recycled, growth hormone rises.
Insulin sensitivity, inflammation markers, stem cell production — sustained benefits compound.
Times are approximate and vary by person, meal composition, activity, and fasting history.
Yes — the timer, journal, stages, charts, achievements, and Health Connect / HealthKit integration are all free. A Pro tier is coming with advanced analytics and unlimited custom plans, but the core experience stays free forever.
Cleaner UI, no aggressive paywall, full privacy (your data stays on your phone), and shorter fast presets (we include 13:11 — Zero doesn't). Plus iOS Live Activities and home-screen widgets on day one.
Completely. The app reads and writes to your device only. Optional anonymous usage analytics can be turned off in Settings.
No. Fasts, weights, and notes never leave your phone. We use PostHog for anonymous, aggregate product analytics (which you can disable). Read the full privacy policy below.
Yes. Weight syncs from Apple Health (iOS) and Health Connect (Android). On iOS, completed fasts can optionally be written as Mindful Minutes.
Coming to the App Store and Google Play soon. Internal testing is live now — reach out if you want to be added as a beta tester.
Download Fasting Well and feel the difference a thoughtfully designed timer makes.