This seems like a pretty cool app. I've gone through your post and I have a few questions to clarify what you're looking to do with the app UI, functionality, etc.
Let us know what time today or tomorrow is good to talk about the app? I've sent a private message with links to some cool apps we've launched for other clients. This will help us get all the info we need to provide an accurate and final price/timeline. Looking forward to speaking.
John
Mobile Apps Interactive