itms-services://?action=download-manifest&url=https%3A%2F%2Fmycompany.com%2Fmanifests%2Fv2.1%2Fapp.plist
At first glance, this string looks like a typo or a garbled code snippet. However, it is one of the most powerful tools for distributing iOS applications outside the Apple App Store. This article breaks down the components: , Action , Download-Manifest , and AMP-URL (though the standard parameter is simply url , the concept of an "AMP" or secure URL applies). What is itms-services ? itms-services is a proprietary URL scheme used by Apple’s iOS operating system. The acronym "ITMS" stands for iTunes Music Store , but in this context, it refers to the underlying service that handles iTunes Store redirects and, crucially, Over-the-Air (OTA) installation . Itms-services Action Download-manifest Amp-url Https
When iOS sees action=download-manifest , it knows: "Do not try to play a song or open a movie. I need to download an installation manifest file." The original specification for this URL scheme uses the key url . However, you will sometimes see variations like amp-url in third-party documentation or forums. This is likely a confusion with AMP (Accelerated Mobile Pages) or simply a typo. itms-services://
&url=
When a user taps a link starting with itms-services:// , iOS intercepts the request and launches the system software update or app installation handler, rather than opening Safari. Let’s dissect the example string: What is itms-services
If you have ever worked with enterprise iOS application distribution, you have likely encountered a strange URL scheme that looks like this:
Understanding this mechanism is essential for anyone managing iOS devices outside the confines of the public App Store. Just remember: are the three pillars that make this magic work.