Please read the scope of work from this link below and send your time and cost estimation or any questions
Mobile GIS Application using ArcGIS API for iOS and windows phone
[url removed, login to view]
12 freelancers are bidding on average $3487 for this job
Dear Sir: We have 4 years experience in GIS programming, dealing with ArcGIS workstation/ArcGIS server mainly. We also do mobile GIS application on iPhone. Please inquire to see our samples! And have a great day too.