Sun tracker,
but neon.
Real-time UV, sunscreen timers, and tan timers — with six color themes to switch up your vibe. Solo dev in Sweden.
What is in the box
- 01
Real-time UV
Live UV readings for your location, updated hourly. Same data as your weather app, but with the good part in the middle.
- 02
Sunscreen timer
The app tells you how long you can stay in the sun before you need more sunscreen. Set it once, get reminders.
- 03
Tan timer
Set a timer for tanning. Get a warning before your skin has had enough.
- 04
Six themes
NEON, AMBER, MATRIX, CYBER, CYAN, LIGHT. Cyberpunk vibes or clean daylight — pick your mood.
- 05
Sun stats
See how much sun you have caught this week and this month. Watch it climb through summer.
- 06
Big-text mode
Three text sizes. Big enough to read at arm's length when you're squinting into the sun.
Six themes. Cyber squad shown.
NEON, AMBER, MATRIX, CYBER below — plus CYAN and LIGHT inside the app. Six moods, one sun.
Common questions
Where does the UV data come from?
On iOS, from Apple WeatherKit (the same data your Weather app uses). On Android, from Open-Meteo. Both use standard meteorological models, updated hourly.
Do I need an account?
Nope. UV Index works right out of the box. No sign-in, no email, no cloud stuff.
Why does it need my location?
To fetch UV data for where you actually are. Your location is used only for weather lookup and never leaves your phone.
Is this medical advice?
No, this is just a tracking app. The timers use standard skin-type guidelines but everyone's skin is different — if you have questions about sun safety, ask a doctor or parent.
iOS or Android?
iOS is out now. Android is being built and coming soon.
How much does it cost?
One-time purchase on iOS — no subscription, no ads. Android version will be free.
UV Index is a fun way to keep track of the sun. It is not medical advice — the timers are based on general guidelines and are meant as a helpful guide, not a strict rule. If you are unsure about sun safety, talk to a parent or doctor.