How to Trust an App on iPhone

Sometimes you just need to take the leap

Apps from the App Store have been vetted and approved. This means the app can be installed on an iPhone using only an Apple password or Face ID. For software that didn't originate from the App Store, manually trust the app to launch it after the installation is complete. This is often the case with enterprise apps that are created by an employer for internal use.

Instructions in this article refer to iPhone X, iPhone 8, and iPhone 7 series phones.

Trust an iPhone App

Before taking the steps below, be sure you trust the app creator as well as its download source. If you're uncertain, avoid trusting the app, as your personal data and iPhone could be compromised.

  1. Download and install the app.

  2. Tap the app icon to open the app.

  3. A message informs you that the app developer is not trusted on the iPhone. Select Cancel to close the message.

    An error message on an iPhone explaining the app developer is untrusted.
  4. Go to the iPhone Home screen and tap Settings.

  5. In the iOS Settings, scroll down and select General.

  6. Scroll down and, depending on the version of iOS, select either Profiles, Profiles & Device Management, or Device Management.

  7. In the Enterprise App section, tap the profile name for the developer of the untrusted app.

    Settings screen on iPhone of profiles and device management.
  8. Select Trust <Developer Name>.

    iPhone settings screen that allows you to trust an app.
  9. Confirm your choice.

  10. Select Verify App, if it's not automatically selected.

    This verification only occurs while you have an active internet connection. If you have a company-issued iPhone and can't verify an app, a firewall may be blocking the connection. Check with your administrator for help.

    Settings on iPhone that ensure you are trusting an app.
  11. That's it. You're now ready to launch your new app!