Develop a custom iOS app

General information for the app: Peer to peer services style app.
Kind of development: New app from scratch
Num. of web pages/modules: 10-14
Description of every page/module: - Landing page
- Settings / Profile Page
- Product list page
- Individual product view (with partial map)
- 'Sell' page - form view
- Messages list view (like PPH)
- Individual messaging view
Description of requirements/features: Required features - Facebook login, user messaging system, currencies api for different product values in different currencies, Paypal api

Desired features - Maps integration with markers in particular views.
Specific technologies required: Facebook, Paypal, Maps, Currency values
Similar urls: See apps: https://taskhub.co.uk, http://www.bizzby.com
Extra notes: Please confirm if you can provide the design yourself or if you require the design templates already prepared.

Please confirm if you offer additional services e.g. publishing, consultancy regarding hosting/servers.