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iOS Introduction

Previously known as iPhone OS, iOS is a mobile operating system developed by Apple Inc.

The first version of iOS was released in 2007, which included the iPhone and iPod Touch.

The iPad (1st generation) was launched on January 27, 2010, and the iPad Mini was released in November 2012.

iOS devices are released quite frequently, and historically, at least one version of the iPhone and iPad is launched annually.

Currently, the iPhone 6s has been released, following previous models such as the iPhone, iPhone 3GS, iPhone 4, iPhone 4s, iPhone 5, iPhone 5s, and iPhone 6.

Similarly, the iPad has been updated from the first generation to the fourth generation, along with a special Mini version.

The iOS SDK has been updated from version 1.0 to 6.0. The latest iOS SDK 6.0 is the only version that supports Xcode 4.5 and later.

Rich Apple documentation allows us to find many methods and libraries for our deployment targets. In the current version of Xcode, we can choose between deployment targets for iOS 4.3, 5.0, and 6.0.

The influence of iOS can be seen in the following features:

The growing number of iPhone and iPad users creates lucrative opportunities for developers in the iPhone and iPad App Store.

A notable feature of iOS is that Apple has developed the App Store, allowing users to purchase applications to enhance their iOS devices.

Developers can publish both free and paid applications in the App Store.

To develop and publish applications on the App Store, developers need to register for the iOS Developer Program, update Xcode annually for $99, and use Mac Mountain Lion or later.

Registering as an Apple Developer

For users with Apple devices, it is essential to have an Apple ID, and becoming a developer requires an Apple ID. Obtaining an Apple ID is free and there are no concerns about fees.

Having an Apple account offers the following benefits:

Registering an Apple Account

  1. Click (https://developer.apple.com/programs/register/) and select to create an Apple ID
  2. Enter personal information
  3. Return to your email to confirm and activate the account
  4. Download development tools, including Xcode, the iOS Simulator, iOS SDK, and other development resources

Applying for App Developer

  1. Click (https://developer.apple.com/programs/ios/)
  2. Click on the registration page
  3. Log in (if you already have an account) or register an Apple ID
  4. Choose between a personal account or a company account; developer teams use company accounts, as personal accounts cannot add other users
  5. New users proceed to the personal information page and use a credit card to purchase membership in the development program
  6. Select the Member Center to utilize developer resources
  7. Here, you can perform the following actions:
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