Personal vitamin D, sunlight and daylight coach

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We don't get enough sun- and daylight on a day-to-day basis. Over a billion people worldwide are vitamin D deficient because of our indoor lifestyle and sun avoidance behavior. We spend most of our time inside and behind computers, tablets and television screens. This indoor lifestyle causes all kinds of health problems that can result in serious illnesses. Many people are having trouble sleeping, are anxious and stressed in this high demanding and fast-paced world.

“Water works wonders, air can do even more, but light works best of all!’’ - M. F. Holick 
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See you outside!


There are many health benefits and advantages by stepping outside your door. Sunlight improves your mood and immune-system, and most importantly it’s the main source of vitamin D!

Vitamin D is obtained by exposure of your bare skin to the sun. HelioS starts working when you’re outside and motivates you to get as much vitamin D as possible without getting a sunburn. When the sun is shining, you would see the UV index on your phone, and you receive a notification from HelioS. After that, you can select your clothing type and start to synthesize vitamin D. You can actually see how many units of vitamin D you are retrieving from the sun and HelioS notifies you when the sun is getting dangerous making sure you’re getting all the positive effects from the sun and making sure you are 100% safe from UV radiation.

HelioS app

Vitamin D coach

The vitamin D coach tracks how much vitamin D you are getting from the sun. HelioS will notify you when vitamin D is possible and also stops when the sun is getting to dangerous. The turnover menu is for maximum vitamin D synthesis. You can see per day, week, month and year how much vitamin D in International Units (IU) you are retrieving from the sun.

Sunlight coach

The sunlight coach shows the UV index at any time and place.The safe exposure time shows how long you can stay outside without any danger from the sun. The sunlight coach provides notifications about sun protection. You can either walk into the shade or put on sunscreen. You can see how many hours you spend safe and unsafe per day, week, month and year.

Daylight coach

The daylight coach considers the minimum amount of light that you need every day. The recommended exposure time shows how long you have to be outside for reaching 100% of daylight that day.

Helios app
The Helios ring is a multi-functional smart device with 3 coaches: 
Helios black and blue smart ring

Vitamin D Coach


  • Track vitamin D consumption

  • Notifications about vitamin D

  • Statistics per week, month and year

  • Turnover menu for max vitamin D

Helios black smart ring

Sunlight Coach


  • Track UV radiation

  • Notifications about sun protection

  • Statistics per week, month and year

  • Displays UV index and safetime

Helios white and pink smart ring

Daylight Coach


  • Track daylight consumption

  • Notifications about Daylight

  • Statistics per week, month and year

  • Recommended outside time

The Helios smart ring

Black ring charger and app

The Helios smart ring is an all around smart device that includes 3 coaches. With the Helios smart ring, you have the perfect combination of the benefits of the sun and protection against UV radiation. The vitamin D coach motivates you to consume vitamin D and keeps score of how much vitamin D you are gaining. This is the first personal vitamin D tracker in the world! The sunlight coach shows how long you can stay outside safely and makes sure that you never get a sunburn again. It's sun protection around your finger! With the daylight coach, you can see how much daylight you need on a daily basis and how long you have to spend outside to reach that minimum amount of daylight. With all the coaches, you can see your progress per day, week, month and year.