Tuesday, July 01, 2025

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Show HN: New Tool Tracks Daily Sunlight Exposure

Introducing a tool to monitor daily sunlight exposure levels

From Hacker News Original Article Hacker News Discussion

A new app focused on circadian rhythms offers features to track natural light exposure and improve daily health patterns, though some users note usability and platform availability concerns.

Why it matters: Tracking light exposure helps users optimize circadian rhythms and potentially improve sleep and alertness.

The other side: Users request a dark theme, smoother navigation with swipe gestures, and an Android version for broader accessibility.

Quick takeaway: Apple’s Time in Daylight feature is underpromoted, and this app fills a niche for those seeking consistent light exposure.

Commenters say: Many appreciate the concept and timing but critique the app's UI, question data accuracy, and debate reliance on tech for natural health habits.