Let's have a look at the most common features that make up the basis of a mobile app. These are just a guide. The final cost will rely upon who you work with and the requirements of each feature you need as well as any modifications.
Let your users sign up and log in with their email address.
Login/Signup with Facebook, Twitter or Google.
Ability to post content from your app straight into users' social media accounts.
If you're developing a game you might want to enroll it with Apple's Game Center.
A rating system allows users to rate and review content for others to see. Think TripAdvisor.
If your app involves community aspects then let your users create their own profiles.
Charge users for extra features, downloads and benefits from inside the app.
Find or gather information about the users location to tailor the app towards their needs.
Allowing users to download the app on any device and their data to be persisted across all.
Get your app designed for the iPad's resolution and make use of all that real estate.
A graceful design makes your application stand out from the rest. This is a must have.
Again, these are just rough figures and your particular implementation may cost less or more. Contact us for a free quote and prototype before you commit!