How to add 64bit support to your iOS apps

Apple’s new A7 processors support 64bit under iOS 7 – but only if your app is specifically compiled for 64bit. Ideally you want to compile once and use 64bit if the architecture supports, and if not use 32bit for devices that have A4 – A6x processors.

Since Xcode 5.0.2 you can do this, and here’s how:

  • head over to your app’s target and choose Build Settings
  • under Architectures, choose “Standard architectures, including 64bit”
  • Xcode will offer to “Change the deployment target to iOS 5.1.1″
  • agree to it and you’re done

Now your app will choose the 64bit frameworks where available, and otherwise use 32bit.

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Jay is the CEO and founder of WP Hosting, a boutique style managed WordPress hosting and support service. He has been working with Plesk since version 9 and is a qualified Parallels Automation Professional. In his spare time he likes to develop iOS apps and WordPress plugins, or draw on tablet devices. He blogs about his coding journey at http://wpguru.co.uk and http://pinkstone.co.uk.