iOS vs. web programming

Hi everyone,

I'm interested whats "better" to know, iOS programming or web (HTML and CSS)?

I've spent most of the summer learning them both and by know I can write simple iOS apps and make basic webpages. University is starting soon so I'm streamlining. I won't have time for both uni (where I'm going to be studying politics) and learning iOS and web.

I know this isn't the best place for unbiased information but I've noticed that there are many people here who know programming.