It really depends on the developer/designer combo and the app itself.
Are these questions hard coded in the app?
Are they dynamically retrieved from an online data base?
Will you be providing all the text in all languages or will the developer have to do that?
It it is very simple, price would start at ~ $1500 at the very minimum.
I am an Android developer; it is possible to cross develop iOS and Android apps at the same time using certain programs like phonegap. I also have connections with iOS developers (if you want a native iOS app) and designers, please give me a call if you would like to follow up.