If your intention is to create a niche app that solves a few problems, you've done a great job of that. The users who like your app will like it a lot.
If you are still in active development and would like to increase the number of people using your app, here are some things that might help:
1) Re-conceive both your self-hosted product page and the Apple App Store description. In short, you need to answer this question quickly and accurately: what makes your browser 100x better than any other browser out there? Currently, your "discover, read, share" sections are not compelling. Your App Store description is a little better with your quick point form feature list.
2) Your integration of Social Bookmarking is very interesting. I recently reviewed Delibar (http://robisit.com/gl). It is an app that saves bookmarks to Delicious or Pinboard. I concluded that the major flaw in this software was that it was limited to these two social bookmarking services. I think that you should integrate every single bookmarking and sharing service into your browser somehow. This is a powerful feature that is not currently being used in iOS apps properly.
3) I realize it's early - but listing real testimonials sells apps. Plain and simple, quotes such as, "I love this app, it changed my life" help people spend $2 on an App.
Without downloading your browser and testing it, it looks like you have an interesting product. The way that you have collected useful browsing add-ons and components into one iOS package might be useful. On the surface, your sales text isn't compelling and presents the biggest problem.