I genuinely care about natural light. It affects my mood, my energy, how much I enjoy being home. When I was renting I would always try to figure out if a place actually got good sun or if it just looked bright because it was 11am on a summer inspection day. I had no real way to know. Then when I was buying my first home the stakes felt even higher. This is a decision you live with for years. I wanted data, not a gut feeling standing in an empty room on a Saturday morning. So I built Solis : Home Sun Tracker. You point your phone at each window, it reads the compass direction and calculates exactly how many sun hours that room gets across the full day. You can add obstructions like trees, fences and neighbouring buildings so the numbers actually reflect reality. A few things that make it genuinely different: a whole home sunlight rating like an energy star rating but for natural light, seasonal simulation, weather forecast vs clear sky comparison, a shareable room by room report (real estate agents have been loving this), and plant recommendations based on each room's actual light levels. Free on iOS and Android. Would love feedback from anyone who cares about natural light as much as I do.

Solis : Home Sun Tracker

Know exactly how much sunlight every room gets

Know exactly how much sunlight every room gets