Undercurrent reveals the invisible patterns shaping your everyday life. Connect sleep, mood, energy, weather, and calendar to discover insights you'd never find on your own. On-device AI analyzes the connections and delivers concrete findings — without any data leaving your phone. Most tracking happens passively via HealthKit and calendar data — you only need a 5-second mood and energy check-in. One-tap friction logging captures what bugs you, and over time the app reveals systematic patterns through heat maps and trend lines.
Kommer snart The intelligent life platform
Connect the dots between sleep, mood, energy, weather, and your calendar to discover what truly shapes your days
Passive Tracking
Quietly collects data from HealthKit, your calendar, weather, and screen time. No manual logging required for the basics.
5-Second Check-ins
Rate your mood and energy in seconds. That's all it takes to build a complete picture of your inner life.
Friction Logging
Something bugging you? One tap captures it. Over time, Undercurrent reveals your systematic friction patterns.
Decision Journal
Log decisions in 30 seconds. Get reminded to review outcomes after 1 week, 1 month, and 1 year. Actually learn from experience.
AI Insights
On-device AI tells you what matters: "Your energy drops 35% on days with 3+ meetings." No data leaves your device.
Heat Maps
Year-overview heat maps, trend lines, and color-coded calendar views make your data feel alive.
Privacy first
All AI processing happens on your device. Your mood, health data, and personal insights never leave your phone.
