SunPetal: Sunlight Hours

Stand where you want to plant something. Hold your phone up and sweep it across the sky. SunPetal works out how many hours of direct sunlight that exact spot gets — not your garden, not your postcode, that spot. It works entirely on your phone. No account, no network, no data leaves the device. WHY A SWEEP, AND NOT AN ADDRESS The difference between a bed that grows tomatoes and one that doesn't is often a single tree, a fence, or the corner of a house. None of that is in a map. The camera sweep measures the actual skyline above the actual spot, so the answer accounts for the things that are really in the way. WHAT YOU GET • Hours of direct sun a day, averaged across your growing season • Every month of the year, so you can see a bed that is bright in June and gone by September • Morning sun and afternoon sun counted separately — horticulturally they are not the same thing • Any single…