Why does my iOS app say 'Untrusted Enterprise Developer'?

Since iOS 9, you need to trust the developer certificate for beta apps distributed through an Enterprise account. This is a one-time process.

How do I trust an Enterprise developer on iOS?

Go to Settings > General > Device Management, select the developer profile under ENTERPRISE APPS, and tap 'Trust "[Developer Name]"'.

Where is Device Management in iOS settings?

You can find Device Management in the Settings app under General.

What happens if I don't trust the Enterprise developer?

If you don't trust the developer, you'll see the 'Untrusted Enterprise Developer' message and won't be able to run the app.

What iOS version requires trusting Enterprise developers?

iOS 9 and later versions require trusting Enterprise developers before running beta distributions.

Do I need to trust the developer every time I update the app?

No, trusting the developer is a one-time process.

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How to Trust an Enterprise Developer on iOS

Learn how to trust an Enterprise Developer on iOS to run beta apps. Fix the 'Untrusted Enterprise Developer' error with these simple steps.

2 min read

TL;DR

To run beta apps on iOS, you must trust the Enterprise developer certificate in Settings > General > Device Management.

Since iOS 9, testers are required to trust your organization’s Apple Enterprise developer certificate before running Beta distributions. This is a one-time process.

When running an App from an untrusted certificate, testers will see the message Untrusted Enterprise Developer. They can trust the certificate by following the steps below:

Navigate to Device Management

Go to Settings > General > Device Management on your iOS device.

Select the Developer Profile

Locate and select the developer profile under the ENTERPRISE APPS section.

Trust the Developer

Tap Trust "[Developer Name]".

Confirm Trust

Select Trust to confirm.

Remember to only trust Enterprise developers that you know and trust.

Key Takeaways

Trusting an Enterprise Developer is required to run beta apps on iOS.
The process involves navigating to Device Management in Settings.
Only trust developers that you know and trust.