UV Index Widget: TanSmarter

TanSmarter is a UV tracker and tanning app for people who want to plan their sun exposure around the real UV index where they are.

TanSmarter shows the live UV index for your location hour by hour, and you can add a UV index widget to your Home Screen to see it at a glance. A short skin type quiz tells the app your skin type. The app uses your skin type and the UV forecast to find the lower-UV periods of the day for your daily tanning plan. When you go out, a guided timer takes you through the front side, the flip and the back side, with a Live Activity on the Lock Screen and in the Dynamic Island. Each session is saved to your Tan Log, so the app also works as a tan tracker.

- Live UV index for your location, with hourly UV, temperature, cloud, wind, sunrise and sunset
- Home Screen widgets: Current UV and Today Plan
- 7-day UV forecast so you can see the days ahead
- Daily tanning plan that finds the lower-UV periods of the day for your skin type
- Guided session timer for front side, flip and back side, with flip and finish reminders
- Live Activity on the Lock Screen and in the Dynamic Island while a session runs
- Tan Log with your session history, the SPF you used, how your skin felt and notes
- Streaks, weekly and monthly minutes, and an estimated vitamin D goal
- Smart Tan Alerts that remind you at lower-UV times, plus comeback nudges; alerts are snoozed after you log a session as "Burning"
- Skin type quiz (Fitzpatrick I–VI) and an SPF suggestion for each session
- iCloud sync across your devices
- Available in English, Spanish and French

TanSmarter 2.0 is a full native rewrite of the app for iPhone.

The timer is a reminder, not a safe exposure limit. TanSmarter gives you UV information and reminders. It is not medical advice, so always use sun protection.

Premium is required to use TanSmarter after onboarding. It is available as a weekly or yearly subscription or as a one-time lifetime purchase.

Terms of Use (EULA): https://tansmarter.com/terms
Privacy Policy: https://tansmarter.com/privacy