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.
Continue in TanMeter
Save results and unlock the full iPhone app.
Download on the App StoreHow it works
- Log your last sunscreen application time and SPF level.
- Select your activity: lounging, active sports, or swimming.
- Start the TanMeter reapply timer on your phone or Apple Watch.
- Receive a haptic alert when reapplication is due.
- 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.