Local light rhythm support
Circadian Companion
A calm daily rhythm guide for local light timing, caffeine timing, sunset wind-down, and one simple cue for tomorrow.
Simple daily timing
Circadian Companion translates the local day into one clear cue at a time: daybreak, sunrise, strong daylight, caffeine closing, sunset, nightfall, and dark mode.
The app is private by design. It does not require an account, ads, social sharing, or external analytics in the current App Store version.
Circadian Companion is wellness rhythm support. It is not medical care, diagnosis, treatment, emergency support, UV exposure guidance, vitamin D guidance, burn-risk guidance, or skin-exposure coaching.