Fasting Well

Fasting Well is a beautiful, science-grounded intermittent fasting tracker.

Designed for the moments your fast actually happens — at home, in transit, before bed — with the kind of polish you'd expect from an app you open every day.

✦ EVERY FAST IS A JOURNEY

A fast isn't a single state — it's a sequence. Anabolic. Catabolic. Fat-burning. Ketosis. Deep ketosis. Fasting Well shows you exactly where you are in that journey, with stage-aware visuals and a quiet narration of what's happening inside.

✦ WHAT YOU GET (FREE FOREVER)

• Live timer with the ring you'll want to watch
• Six built-in plans: 16:8, 18:6, 20:4, OMAD, 24h, 36h
• Stage-aware progress: see Anabolic → Ketosis unfold
• Notifications when you cross a stage or hit your goal
• Journal of your last 30 days with a weekly chart
• Five long-form science articles, beautifully illustrated
• Calendar heatmap of recent activity
• Dark and light themes that look right on every screen

✦ WHY ANOTHER FASTING APP?

Because the popular ones either gutted their free tier or never felt like apps you'd open without a reason. Fasting Well is built to be the home screen icon you actually like seeing.

✦ PRIVACY-FIRST

Your fasts and weight data stay on your device — no account, no cloud sync, no servers we own. To make the app better we collect anonymous usage signals (e.g. "a fast was started on the 18:6 plan" or "an article was opened") through PostHog. These contain no personally identifying information and can be turned off entirely in Settings → Privacy.

✦ SCIENCE-BACKED, NOT WELLNESS-HYPE

Built on peer-reviewed fasting research. No talk of "detox." No supplements to sell. Just the metabolic story your body is actually telling.

✦ FASTING WELL PRO

Go deeper with Pro: build custom fasting protocols, log your weight and watch the trend, unlock advanced statistics, share beautiful fast cards, and pick from every accent color. Pro is a monthly or annual subscription, or a one-time lifetime purchase — and the core tracker stays free forever.

Questions or feedback? hello@fastingwell.app

We're a small team. Every email gets read.