App Store Launch
One 30-second check-in. No logging. No calorie counting. A coach that learns your rhythm — plus push notifications, offline timer, and everything native iOS makes possible.
Launching May 29, 2026 — in
Share with 3 friends to unlock early access. Every person who joins via your link moves you up the list.
You're always in control — Full Manual Mode, Timer-Only Mode, complete transparency. The AI is here if you want it, gone if you don't.
One toggle and the AI is gone. No coaching, no suggestions. Just your schedule, your call — always.
No coaching, no check-ins, just a timer. Works offline. Start a fast, close the app — your progress is there when you return.
The AI explains every decision in plain English. No black boxes, no mystery adjustments — you always know why your window changed.
Your data, your call. Delete everything in one tap — no support ticket, no waiting period, no dark patterns.
Native push means your fast-end reminder shows up even when your screen is locked. No more missing check-ins.
30 seconds a day. Rate your energy, mood, and difficulty. The AI adapts your window tomorrow — no logging, no calorie counting.
Real feedback from the beta. No coaching degrees required — just honest ratings and the AI does the work.
I tried every fasting app out there. Circafast is the first one that actually adapts to MY schedule instead of forcing a cookie-cutter plan.
The check-in emails are genius. No logging, no food diaries — just a quick 1-10 score and the AI handles the rest.
I went from 16:8 to 20:4 without even noticing. The progression feels completely natural — it just happens.
The web app works great. But some things need to be native to be real.
Web push is unreliable, especially on iOS. Native push means your fast-end reminder shows up even when your screen is locked.
Airplane mode, poor signal, subway — your fast timer keeps running. No internet required for the core fasting experience.
Native rendering means sub-100ms interactions. The daily check-in takes 10 seconds instead of 25. Feels like a different product.
Automatic fasting window logging, heart rate correlation, and sleep data sync for smarter AI coaching decisions.
Launching soon
Join the waitlist above to be notified the moment it's live.
The web app is live today. Get instant access — no waiting, no app store — for $29.99 once, lifetime. When the iOS app drops, you're already in. First 100 only.
— of 100 founding spots claimed. Prefer to wait? Join the waitlist instead →
$4.99/month — less than half what other fasting apps charge. We'll send one email when it's live. That's it.
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