TanMeter App Store

TanMeter tool

Log and Track Your Sun Exposure Sessions

Log each sun session with start time, duration, SPF used, and UV index and TanMeter builds a weekly exposure chart so you can spot overexposure trends.

Continue in TanMeter

Save results and unlock the full iPhone app.

Download on the App Store

How it works

  1. Start a new sun session in TanMeter when you go outdoors.
  2. Confirm auto-detected UV index or enter it manually.
  3. Log SPF level and whether you wore a hat or cover-up.
  4. Stop the timer when you head inside or apply shade.
  5. Review your weekly and monthly exposure totals in the TanMeter dashboard.

FAQ

Does TanMeter auto-detect when I am in the sun?

The TanMeter iOS app uses location and ambient light sensors to suggest session starts, but you confirm each log manually.

Can I export my sun session history?

Export CSV or PDF reports from TanMeter to share with a dermatologist during skin check appointments.

What is a safe weekly sun exposure total?

TanMeter flags weeks where cumulative unprotected exposure exceeds your skin type's safe threshold based on WHO guidelines.