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UVSun

UVSun

Safe sun time by skin type

See the UV index where you are and how much safe sun your skin has left today.

Get it on Google Play

Screenshots

Home dashboard on the sunrise sky - minutes left in today's safe doseDose ledger close-up - percent used, dose left, and the spending rateSkin-type check - a private camera scan or a quick color quizHonest sunscreen - the reflected-protection graph and the reapply sheetWhole-day UV forecast in WHO colors with the peak markedWeekly stats and the sun-session logFour sky themes - sunrise, noon, sunset and night, light and dark

Know how much safe sun you have left today - personalized to your skin, and honest about it.

How it works

  1. 1Allow location and UVSun looks up the UV index for where you are, with your place name.
  2. 2Do a quick skin-type check - a private camera color scan or a short quiz reads your eye, skin, and hair color to estimate your Fitzpatrick type (I-VI).
  3. 3Watch your remaining safe-sun time and daily dose budget update through the day.
  4. 4Tap "I'm in the sun" to track a session, and get a shade heads-up before you overdo it plus a reminder to reapply sunscreen.

Why UVSun is different

  • It shows its work. See your remaining safe-sun time, how much of your daily dose you have used, and how fast you are spending it - not a black-box countdown. The budget is set with a safety margin, on purpose.
  • Honest about sunscreen. When you log SPF, UVSun credits realistic in-use protection and then eases off its assumption over time - it reminds you to reapply instead of pretending the sunscreen lasts forever.
  • It keeps up with the sun. A session re-rates as the sun climbs and as your sunscreen ages, so the number actually moves - it never freezes at what it said when you started.
  • Backed by real science. A Science page cites peer-reviewed sun-safety research and is upfront about what the evidence does and does not show.

What's inside

  • The current UV index for your exact location, with place name
  • Personalized safe-sun time and a daily dose budget by skin type
  • Skin-type estimate from a private camera color scan or a quick quiz
  • SPF-aware timing with honest reapply reminders
  • Sun sessions with history and weekly stats
  • A whole-day, hour-by-hour UV forecast in WHO color bands, with a "now" marker to plan around the peak
  • Shade, reapply, and "UV is climbing" alerts
  • A Science page citing peer-reviewed sun-safety research

Enjoy the sun with a number you can trust - and know when it's time to seek shade.

Frequently asked questions

Is UVSun free?

Yes - every feature is free, supported by light ads. An optional one-time purchase removes ads (banner + app-open). No subscription.

Who is UVSun for?

Anyone who spends time outdoors and wants to enjoy the sun without overdoing it - it personalizes safe-sun time to your skin type.

Do I need an account? Is my data private?

No account, no sign-up, no cloud. Everything stays on your phone; your location is used only to look up the UV index and your place name, never for ads.

How does it know my safe-sun time?

It reads the current UV index where you are and combines it with your skin type (from a camera color scan or a quick quiz); sunscreen slows the rate. It's general wellness guidance, not medical advice.

What platforms and languages does it support?

Android and iOS, in 10 languages.

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