Vitamin-D Thirty
Your skin uses UVB rays from the sun to convert cholesterol to vitamin D. However, UVB rays only penetrate the earths atmosphere when the sun has an altitude angle that is greater than 50 degrees. This application uses longitude, latitude, time of day and day of the year to compute the altitude angle of the sun. This application also sends the user a notification when the altitude angle of the sun reaches 50 degrees and its maximum angle.
During the winter months when the sun does not reach an altitude angle of 50 degrees, no notifications are sent.
Category : Health & Fitness
Reviews (9)
Nice simple app without nagging, stupid ads etc. Seems to have a little trouble with daylight savings time though - switchover was last night and the time window for being outside moved two hours.
Very simple. It tells me when thebest time to go outside.
can we have notification for dark themed android? its hard to read. otherwise perfect app
Just a screen that tells you when uvb is live. But thats all i want, so good!
Easy to use, error free, very useful little app
Need to update for newer phones
Times are incorrect. I checked with another app and an online azimuth calculator. Problem seems to be the app doesn't allow for local time eg DST. The display is fairly dull, being mainly a crude image. Would have been better without.
The app is not working. It says it will work in March 28. That's a month and a half from now. 😞
This app is the perfect reminder for me to get outside more so I can let my body naturally produce Vitamin D. I've been using it for a few weeks and it has helped me enjoy the outdoors more often. I'm getting a nice tan on my face and arms, and my eyebrows are beginning to bleach from the sun. Try it, you'll like it!