Saw a loading animation for 5 seconds and almost left. There's no reason for a static/informational landing page to have a loading animation. Your assets aren't massive except for this one: http://travelbutler.net/images/bg-2.png
You should make that a JPEG and play with the quality level. You could probably get that down to a few hundred KB.
Hi, thanks, you're totally right. The image assets were a mess. Just fixed it, should load a lot faster now.
Hi, I'm Sebastian. This is my third iOS app and something I've used as a prototype myself for a while. I found it useful and therefore finished and published the app now - hope you like it as well. Let me know if you have any questions!