Sun timing
Tanner
One honest answer to one question: when today should you be outside to tan? Tanner reads the local hourly UV forecast against your skin type and gives you a single window — say, 11:40a–1:10p — with a ceiling set to keep you short of a burn.
Today's window, front and center. A single clear span for when to head out, and a ceiling that marks when to come back in before the sun turns against you.
Tuned to your skin. Choose one of the six Fitzpatrick types once. It stays on your phone and shapes every window from then on.
Three days out. Tomorrow and the day after, so you can plan the beach, the hike, or the afternoon off around real sun.
On your home and lock screen. A widget keeps today's window in view without opening the app.
One quiet heads-up. An optional local notification, thirty minutes before the window opens. Nothing else, no noise.
Honest about no-window days. When the UV never lines up, Tanner says so plainly rather than inventing a reason to send you outside.
Tanner tells you when not to be in the sun as much as when to be. The window's ceiling is a burn-avoidance bound for your skin type — it is not medical advice, makes no medical claims, and is not a substitute for sunscreen or a clinician's guidance.
Coming to the App Store — 2026
← Dantes Creative Labs