I have no doubt that whoever upgraded to iOS 9 or later have come across an error called “Untrusted Enterprise Developer” on their iPhone and iPad.
I love downloading apps from the App Store.
- Most of them are free
- They’re easy to install (one tap away unless you have entered your Apple ID)
- No further setup needed
That doesn’t matter anyways because you can still install them. The only different is that users are now responsible for the “third-party apps” that they downloaded.
As a result, Apple added the warning to devices running iOS 9 and higher. It says,
Untrusted Enterprise Developer” along with iPhone Distribution….has not been trusted on this iPhone.
Until this developer has been trusted, their enterprise apps will not be able to use.
No need to get in touch with the dev. Most of them won’t do as requested. There is a better solution to this, and you can do it directly on your own.
Untrusted Enterprise Developer in iOS 9
After downloading the app, don’t open it yet. Follow the instructions below first.
- Go to Settings > General > Profile
- On this page, you may find several enterprise apps
- Choose the app corresponding to the app that iPhone doesn’t let you open
- Tap on the Trust button and another one to confirm
Now go back to your home screen and try to open the application. You shouldn’t have any trouble opening it since its profile has been signed personally by you, the device owner.
This Untrusted Enterprise Developer prompt is another great way to hardening the security of your iPhone. This will allow you to manually trust non-App Store apps.
For iOS 9.3.3 Users
Another recent situation with this error would be the new Pangu Jailbreak for iOS 9.3.3. You can now download the jailbreak utility and initialize it to install Cydia without a computer.
However, to open the Pangu app, you will need to use this method to trust it manually. I hope this help and enjoy!