Circadian Energy

Name: Circadian Energy
Availability: InStock
Author: socialmedia8460

Your biometric energy curve. No subscriptions.

by socialmedia8460

FreemiumiOS

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Upvotes: 5
Comments: 0
Impressions: 238

About

Circadian is an iPhone app that helps you understand your daily energy rhythm. It visualizes your personal energy curve hour by hour so you can see when you are likely to perform best. The curve can be viewed quickly via a lockscreen widget, reducing the need to open the app, and notifications are optional. The app emphasizes information over instruction: it does not assign sleep scores, “sleep debt” grades, or other judgment-based metrics. Privacy is a core part of the product positioning—health data stays on the device, with no cloud, tracking, or required account. Circadian also includes a knowledge section with sourced articles and interactive tools such as sleep-debt calculation, chronotype self-tests, optimal sleep-time calculation, and explanations of concepts like the two-process model and HRV.

Problem & solution

Problem

People lack clear timing insight into daily energy highs and lows.

Solution

Shows a personal hourly energy curve locally via widget, no scores or subscription.

Who it's for

iPhone users who want to understand sleep, rhythm, and energy.

Main features

Lockscreen energy widget
Hourly energy curve
No subscription
On-device privacy
Science articles & calculators