We had a previous contractor work with us on building an iPhone app for our local transit system (buses and train times). We have a web server setup with the latest database to provide times from but since we don't have the original code anymore we cant update the app.
We're looking to rebuild the app in Objective-C but retain the users favorites (they save their bus stops to local memory on the phone) if possible. Since we don't have the original code we would like to have the same functions but just build the app using default xCode controls to begin with.
Experience with converting GTFS to some sort of database would be a big plus as we will need help updating the database when new schedules are released. We would like to work with a distribution system to review progress on the app development like Test Flight.
We would also like to be provided with the complete code at the end of the project with no compiler errors. Just looking for ideas on cost to rebuild at this time. The app can be downloaded and viewed here for the functions: https://itunes.apple.com/ca/app/next-stop/id403830390?mt=8