Completely worthless app

I have an app on my phone that gives me sunrise/sunset times within a minute, but it rounds up or down so some days the number of minutes of daylight stays the same even though I know they are varying. I was looking for something that would be more precise and I thought I had found it with this app. I was sorely disappointed. First, it installs on the calendar by adding the words "sunrise" and "sunset" to every single day of the calendar (I thought it would put in the actual times). You have to click on the word to open up a pop-up window that gives a 30-MINUTE range. I.e., sunrise today will be between 7:30 and 8:00 am? What the heck? Why on earth would anyone find it useful to know that???? Surely you can look out the window and see that it happens sometime between those times?

I would love to just uninstall this and get my money back but dont know if theres a way to do that.

Auskan about SunRise/SunSet Cal (SunCal)