Enterprise App Installation Fails on iOS 18.5 with Integrity Error

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_dayexx
_dayexx OP
Created 1w
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I am a developer distributing an enterprise app.

Recently, some users have intermittently encountered an error message on iOS 18.5 stating: "Unable to install this app because its integrity could not be verified." While the issue could not be reproduced on iPhone 15 / iOS 18.5, we have received reports that it does occur on the following devices:

iPhone 14 / iOS 18.5, iPhone 14 Pro / iOS 18.5, iPhone 14 Plus / iOS 18.5, iPhone 16 Pro Max / iOS 18.5,

Are there any known issues or recommended solutions regarding this behavior? Thank you in advance for your assistance.

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Apple Staff, DTS Engineer
DTS Engineer OP
Apple
6d

Is this only when installing the app, or with an existing app installed to the device? There was an issue for apps already installed on the device with certain iOS 18 versions, as detailed in this thread. If this is the case for you, there's a workaround in that thread.

— Ed Ford,  DTS Engineer

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Enterprise App Installation Fails on iOS 18.5 with Integrity Error
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