Developing for iOS 4
Technical Documentation
Getting Started Documents
Developers new to iOS can read about the tools, frameworks, development best-practices, and design methods for creating innovative world-class iOS applications.
iOS Reference Library
Explore a collection of in-depth technical documentation, sample code, guides, and articles for iOS development categorized by topic and frameworks.
To access iOS SDK 4 and additional technical resources and information, log in with the Apple ID and password you used to register as an Apple Developer, or register for free today.
iOS SDK 4.0.2
Registered Apple Developers can download iOS SDK 4.0.2, which includes the Xcode IDE, iPhone Simulator, and a suite of additional tools for developing applications for iPhone, iPad and iPod touch.
Getting Started Videos
Watch Apple experts discuss everything from getting started with iOS SDK, to the tools and technologies used to create iOS applications.
Coding How-To's
Play a movie. Play a sound. Detect motion. Learn how to incorporate features of iOS in your application.
iPhone Developer Program
iOS 4 Readiness Checklist
Learn how to make sure
your applications are
compatible with iOS 4.
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App Store Resource Center
Find details on everything
from how to prepare for
submitting an app to managing
an app once it's been posted. Log in
News and Announcements
Check out this regularly
updated section for a range of information including tips on submitting apps, turnaround time for app review, and more. Learn more
