Fasting Cycle

One circle. Always on the phase you're in.

Visit fastingcycle.app ↗Join the Fasting Cycle beta →← All software

Status

BETA OPEN

Platforms

iOS · Android

Built with

SwiftUI · FastingCore · Native iOS

Preview — from the product

Captured from the running product

Fasting phase — 16h countdown, calm and at a glance.

Eating window — the ring zooms to the phase you're in.

Full day — your whole rhythm on one circle.

Drag the ring to shape your eating window and sleep.

History — calendar with daily weight, water, and steps.

Dark mode — eating window with weight, water, and steps.

Dark mode — fasting phase, stripped to what matters.

Dark mode — settings ring with every log in place.

Dark mode — history and trends on a black canvas.

Tap to log meals and weight right from the ring.

Overview

Fasting Cycle helps you run a standard intermittent-fasting protocol — default 16:8 — without thinking about clocks or math. The whole experience is anchored on one circular dial that represents your full 24-hour day, splits into fasting and eating arcs, and zooms into whichever phase you're in right now.

Below the ring: weight, water (2 L target), and steps — three calm trackers on the same surface. Gentle nudges for breakfast, lunch, dinner, weigh-in, hydration, and walks. Drag the ring in Settings to shape your eating window and sleep. Light, dark, or system appearance. Beta is open on iPhone; Android follows.

Capabilities

The zooming circle

A 24h ring that zooms to fasting, eating, or full-day — the present moment always fills the screen.

Configurable windows

Set eating start and length (12 / 8 / 6 / 4 / 0 h). Drag handles on the ring; fasting fills the rest automatically.

Weight · water · steps

Daily weigh-in, 2 L hydration with eight toggleable reminders, and step progress — all on the Today screen.

History & trends

Calendar view with per-day weight, water, and steps so you can see streaks over time.

Reminders that help

Eat-now, lunch midpoint, dinner last-call, scale, water, and walk nudges — each individually toggleable.

FastingCore engine

Pure Swift domain logic underneath — midnight-safe scheduling, OMAD mode, and weather-aware walk advice ready for the next phase.

Access

Beta is open.
Take a seat.

Fasting Cycle is accepting beta users now. Register and we'll send your access when a slot opens.

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