D-Minder

ontometrics

In-app purchases

About this app

D-Minder helps you maintain optimal vitamin D levels by tracking sun exposure, supplements, and dietary intake. Using real-time solar position and satellite ozone data, D-Minder calculates how much vitamin D you produce during each session.

Ratings and reviews

This used to be a great app. I used it for over two years with no problems. During that time, the tracked numbers would be within a couple digits of my Vitamin D lab test results. That was pretty amazing. Since it was updated, this app no longer functions properly except as a supplement tracker. You can't track a live sun session. Adding prior sun sessions don't accurately reflect the correct IUs obtained. Inputted lab results, erroneously throw off the tracker.

Lots of bugs since update. I started a session today and could not stop the app. I tried for stopping, restarting my device and the only way I could get it to stop was to actually uninstall and then reinstall the app. Also, the amount of vitamin d does not correlate with the amount that it says you're getting per minute and the time that you're outside? It's consistently showing much less than if you do the math.

I used to use this app daily, and despite a few annoying problems, it worked fine for the job. With the recent update, it's now wildy inaccurate. The IU/min rate used to be good, but now it's way too low, and the altitude is always several thousand feet too low. I'm in central Nevada at 5500 feet right now, at noon, with 100% skin exposure. Altitude says I'm only at 1819 feet, and app says I'm only getting 86 IU/min. My research indicates that it should be around 280 IU/min. Please fix!

What’s new

Fixed: the UV Index scale sheet (tap the UVI number on Home) showed safe-exposure times roughly twice as long as they should be. It now uses the same canonical burn-time math as the rest of the app.