One: Track Fasts, Hit Goals

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About this app

Achieve your health goals with One, the simple and effective intermittent fasting (IF) tracker designed for focus and consistency.

Built for those who value clarity over clutter, One provides the essential tools to manage your fasting schedule without distractions. We believe that a straightforward approach is the most sustainable way to build a healthy habit. No ads, no subscriptions, no complicated settings. Just a reliable tool to support your journey.

Why Choose One?

Focused & Uncluttered Interface
Our clean design helps you concentrate on your fast, not on navigating a complex app. It's the perfect tool for tracking popular schedules like 16:8 or circadian rhythm fasting.

Effortless Control
Start, stop, edit, and view your fasts with just a few intuitive taps. Tracking your progress and history has never been easier.

Truly Free, For Everyone
One is completely free. We promise zero advertisements, no premium paywalls, and no hidden costs. Ever.

Fast & Lightweight
Launches instantly and runs smoothly, respecting your device's battery and resources.

Seamless Wear OS Integration

Take full control of your fast right from your wrist with features designed for convenience and discretion.

Customizable Complications
Add a Complication directly to your favorite watch face for a constant, subtle view of your timer.

Full Wrist Control
Start, stop, and monitor your fasts without ever touching your phone.

Download One today and experience a more focused approach to intermittent fasting.

Ratings and reviews

it is as described. a simple fasting tracker. it can be opened to start and end on the samsung watch. however, there's no features for editing. Your options for timing are limited to just a few basic selections. It does not record your data for later review. choose a time option, hit start, it counts time, hit end. that's it. I give it 3 stars for ease of use, not 5 stars, because there are no other features or customization. maybe it's for you.

Great simple app. My only issue, and perhaps I'm missing something, but when you go to edit fast start time it seems to only allow editing of time. Often, I need to edit the date of the start of fasting as well.

Great app but missing two things. it's needs a eating period that is tracked. Also it would be nice to edit past start and stop times.