Accumulated UV exposure from the sun is the most significant cause of wrinkles, premature ageing and even skin cancer. Also, not receiving enough sun reduces your Vitamin D levels and can contribute to seasonal depression. Now, your existing phone or AndroidWear watch can effortlessly monitor your exposure, and alert you when the sun (or lack of) threatens your health.

Track your solar ultraviolet exposure on the ski slopes, at the beach, or on the go. Decades of scientific research and groundbreaking physical models now allow your phone's internal light sensor to accurately measure your ultraviolet exposure from the sun!

*NOTE: Most phones have a limited internal light sensor that can't detect bright light. This is not a bug in the app, but a limitation of the phone hardware. However, performance is very good with the Sony SW3 and some recent, high-end phones.

-Compatible with some Android phones and the Sony SmartWatch 3

-Track your exposure on an Android phone or on the web

-Alerts you when you've reached the limit

-Reminds you to go outside if you haven't had enough sun