After having peoples opinions I then decided to go with the Dark Concept as it was easier to navigate and it stood out among the rest of the accommodation apps. I then use InVision to help create a working prototype using hyperlinks and an iPhone frame. The requirement was a minimum of 10 screens but I ended up having more than double that number. Having different login pages for the student and landlord was confusing when it came to linking all the pages together. The prototype took me longer than I had anticipated as I thought it would have been very simple but it turned out to be a little more complicated and involved me having to go back to Illustrator a few times to refine some screens.
Overall I'm very happy with the over concept and look of the application and I think if I was to take it further and get it coded and available to download the App Store then it would be a potential hit for students and landlords as it is easy to use, easy to navigate and a very simple design that everyone would feel comfortable using.