What is Lume: Light Tracker?
The Lume app makes tracking your sunlight effortless. By aligning your daily light exposure with your body’s biological rhythm, it helps lift mood, boost energy, and improve sleep quality.
Problem
Users struggle to manually track sunlight exposure using generic apps or journals, leading to inconsistent data and ineffective alignment with circadian rhythms, which impacts sleep, mood, and energy.
Solution
A mobile app that passively tracks sunlight exposure via smartphone sensors and provides personalized recommendations to optimize circadian rhythms. Users receive insights like ideal morning light timing or evening darkness cues.
Customers
Health-conscious individuals, biohackers, shift workers, and people managing sleep disorders or seasonal affective disorder (SAD).
Unique Features
Passive tracking (no wearables), circadian science-backed algorithms, and integration with Apple Health/Google Fit.
User Comments
Improved sleep quality after using the app; Easy to use with no manual input; Helps manage SAD symptoms; Science-based approach feels trustworthy; Wishes for wearable integration.
Traction
Launched in 2023, 15k+ downloads, 4.8/5 rating (200+ reviews), featured in 10+ wellness newsletters. Founder has 2.5k LinkedIn followers.
Market Size
The global $4.5 billion circadian rhythm optimization market (2023) is projected to grow at 7.2% CAGR through 2030 (Grand View Research).
