Circadian Energy
Visualize your personalized energy curve without stress
What it does
Circadian helps you sync your life with your biological rhythm. Using HealthKit data, it calculates a personalized energy curve to show you exactly when to focus and when to rest. Unlike other trackers, I aimed to avoid anxiety-inducing metrics like sleep debt and cut out annoying notifications. Get a clear view of your productivity windows and optimize your day based on your body’s natural clock. Experience science-based tracking designed for clarity and focus.
Does the same job
all alternatives →
Lifestack (Web + AI Scheduler)2025 · ▲576First AI calendar to use health data for better productivity
PeakRoutineJun 2026 · peakroutinehealth.com · ▲278Personalized health coaching powered by your biomarkers
- IBI built a daily sunlight tracker2025 · lumehealth.io · ▲46
I kept trying to explain how important outdoor light is and how most people aren’t getting enough. Eventually I figured that showing is more effective than telling. So we built a free app that uses your Apple Watch or iPhone to automatically track your light exposure throughout the day. It tells you if you’re getting enough, shows you how consistent you are, and rewards habits that support hormone balance. It's in beta on TestFlight, let me know what you think!
More work this month
the category →
The app store for voice native apps that lives in your notch
Work · 28d ago · voiceos.com
Mac-native app for screenshots, recordings and collaboration
Work · 5d ago · cleanshot.com
Launched alongside, March 2026
the whole month →
Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
