The idea behind this application is that it will help you track and manage your Vitamin D.

This new version integrates with the Apple Health app to make seamless data exchange possible in the following ways:

* on setup, profile information is fetched from the Health App if the user allows it
* the user's weight (a factor in D generation) is fetched on an ongoing basis, making it unnecessary to update it
* the app will write vitamin D doses, including session information into the Health app

You setup basic information one time, like your height and weight and skin type and then any time you are outside, during the prescribed hours (and parts of the year), you can have it compute the amount of D you are getting in a stopwatch interface. It will also track how long you can stay out and warn you when the time is up.

The application will notify you with the next opportunity to generate vitamin D.

Each day, you can see forecasts based on your location, and you can also see the solar position, your generated vitamin D vs. target etc.

In the Pro version, you can see your exposures' history and you will be able to schedule future events for next exposures.

What’s New

Version 7.9.0

Fixed the FAQ page
Redid the annual view, HUGE improvement
Other small improvements

Ratings and Reviews

4.8 out of 5
15 Ratings

15 Ratings

Rich8899 ,

Just what the Doctor ordered!

Great App!

Most people are not aware that they should be taking Vitamin D supplements.

I Highly recommended that people join the Facebook Group B2B101 Back to Basics Health for more info on Vitamin D and all other health related aspects!

NeishaUK ,

No supplements needed

Am confidently moving from supplementing vit D to using this and striping off a lot in the sunshine! It makes me be outside more and relax - bonus! Thanks x

tony cunliffe ,

Great tool for Vitamin D deficiency

Advised by my consultant to use this app, still early days but really happy so far


RobCo, Inc.
45.9 MB
Health & Fitness

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© ontometrics 2015
In-App Purchases
  1. DMinder Premium £1.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.