Unity 5.0 Il2cpp

Using Unity5.0 for some time, until recently found Il2cpp, not very understand what it is doing, because with the Itextsharp to generate PDF files on the iOS device, You must switch from Mono2.0 to Il2cpp when build becomes a Xcode project, or Itextsharp will cause the app to crash on iOS devices, and there's no time to tangle. But when the IPA was released, it found that the size of the IPA was almost half as much as it used to be in Mono2.0.

So test it and create an empty unity project that generates an IPA:

mono2.x:

Export Xcode Project from unity: 22 seconds

SIZE:273.5MB of the Xcode project

Pack ipa:2 minutes for 16 seconds

SIZE:11.7MB of IPA

Il2cpp:

Export Xcode Project from unity: 48 seconds

SIZE:603.5MB of the Xcode project

Pack ipa:3 minutes for 48 seconds

SIZE:19.7MB of IPA

Compared to the results, il2cpp is less expensive, but it is estimated to be more efficient to run on iOS devices with Il2cpp apps, and it supports 64Bit iOS. Pending study.

Source for PDF generated with unity: Https://github.com/selectgithub/UnityiTextSharp