TanMeter App Store

TanMeter tool

Never Miss a Sunscreen Reapplication

TanMeter starts a countdown from your last application and sends push alerts when it is time to reapply—adjusting for swimming, sweating, and towel drying.

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How it works

  1. Log your last sunscreen application time and SPF level.
  2. Select your activity: lounging, active sports, or swimming.
  3. Start the TanMeter reapply timer on your phone or Apple Watch.
  4. Receive a haptic alert when reapplication is due.
  5. Tap reapply to reset the timer and log the session in TanMeter.

FAQ

How often should I reapply sunscreen?

Every two hours at minimum, or immediately after swimming, heavy sweating, or towel drying—whichever comes first.

Does the TanMeter timer work on Apple Watch?

Yes. The TanMeter watch app shows a live countdown and taps your wrist when reapplication is due.

Can I set different timers for face and body?

TanMeter lets you run separate face and body timers since facial sunscreen often wears off faster from touching and sweating.