Frameworks make your life easier as an iOS Developer. They allow you to reuse code written by other developers in your own apps. An overview of key frameworks and other considerations are included in the "Common Frameworks" section below.

• AFNetworking—Learn how to interact with data not hosted locally on a user's iPhone.
• Core Data—Understand how to persist data across app launches.

Common Frameworks

Below are common frameworks commonly used to build many apps. You may not need all of them for your projects, but it's good to be aware of your options.

Link	Description
Maps	MapKit, Annotations, GPS, Core Location, and Geocoding
Persistence	Core Data, SQLite, documents directory, file system, iCloud, CloudKit, Parse
Monetization	App Store, iTunes Connect, In-app purchases, iAd
Device Management	Resource Management battery, bandwidth, radios, GPS, CPU
Social	frameworks like Facebook, Twitter
Concurrency	Grand Central Dispatch, Async i/o, queues, multithreading