Circadian shows you your personal energy curve — so you know when you're at your best.
Energy isn't constant. Circadian reveals your body's natural rhythm.
Your energy curve right on the Lock Screen. One glance is all it takes — no need to open the app.
When is your next peak? Circadian looks ahead, not behind.
No subscription. No hidden fees. Buy once, use forever.
Understand your energy without feeling bad about it.
Circadian shows your curve. It doesn't tell you what to do. Your day, your call.
No sleep score. No sleep debt number. No judgment. The curve is the information.
Circadian emphasizes when you can be at your best — not when you're tired.
Your widget shows everything at a glance. Notifications only when you want them.
Your health data never leaves your iPhone.