How to Trust an App on iPhone “Untrusted Developer”

You may have heard that installing apps on iPhones outside of the App Store is not possible. With an iPhone how to trust a developer on iPhone, you can’t instantly install an app from outside the App Store, but that doesn’t mean you can’t. Sometimes you may need to install business apps that are not available on the App Store. Company apps include apps from your school and organization. If you want to install a business app on your iPhone, you need to trust an app on your iPhone to install it.

When it comes to Android phones, you can easily download and install and use third-party apps and it is a hassle-free process. But the same goes for the iPhone. You have to go through the whole process of trusting an app on your iPhone in order to use the trust apps.

How to trust an app on iPhone 

If you don’t know how to trust app on iPhone, don’t worry as it doesn’t prevent you from installing third party apps on iPhone. Here in this article, we will discuss how to trust an app on iPhone.

Trust An App Guides works on different iPhones:

  • iPhone 5s
  • iPhone 6
  • iPhone 6S
  • iPhone SE
  • iPhone 7
  • iPhone 8
  • iPhone X
  • iPhone XR
  • iPhone 11
  • iPhone 11 Pro max
  • iphone 12
  • iPhone 12 pro max
  • iPhone 13 mini
  • iPhone 13 pro

Trust an app on iPhone

First, you need to download and install the app you want to use on your iPhone. Although you can install the app on your iPhone, you cannot use it on your device. In order to use the app, you must trust it. How to trust an iPhone app will be covered in advance. Make sure you have a working internet connection first, though, before you proceed to trust the iPhone app. Make sure your phone has an active internet connection before continuing because you cannot trust an app if it does not. Follow these steps to trust an app on iPhone:

  • Go to the Settingsapp on your iPhone.
  • In the Settingsapp, scroll down to find the General Tap on it to open the General section.
  • From here, tap on the Profiles/ Profile and Device Management/ Device ManagementThe option may vary depending on the iOS version you are using on your phone. However, you will only see Profile and device management option if your employer manages your device remotely, otherwise you will not see this option.
  • Here you see the Enterprise AppTap your profile name under the Enterprise app section.

  • Here, tap Trust [Developer Name]. You will be prompted to confirm trust in the app.

  • Tap Verify Appto trust the app on iPhone.


This is the complete process to trust an app on iPhone. You must manually trust the app in order to use the app on your iPhone. If you don’t trust the app on iPhone which you didn’t install from app store, you can’t use it. Make sure you have an active internet connection while building trust. An internet connection is required to verify the app developer’s certificate. If you are behind a firewall when inspecting an app, configure it to allow connections to you may need to periodically re-validate the app developer’s certificate to maintain trust for enterprise apps. You will see a message indicating that the trust is about to expire. To verify again, either connect your device to the internet and tap the “Verify App” button, or simply launch the app.


Why do I have to trust an app on iPhone?

iOS doesn’t allow you to use an app on your device that isn’t from the App Store unless you trust it. You may need to trust certain apps, e.g. B. Apps from companies. Such apps are not available in App Store and it is not possible to run them without granting trust permission on your iOS device.


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