iphone open app shows untrusted enterprise developers can't open

After Apple's system has been updated to IOS 9.0, some apps that are not downloaded from AppStore are not open and appear as " Untrusted Enterprise Developers " and have only one " Cancel " button.

In fact, before IOS 9 , there was a trust button.

Okay, don't talk nonsense.

1. First open the iphone's " settings ",

2. Click " General "

3, down to the following section, click on " Device Management ", on the iphone 6s display is device management, but in the iphone 6 and the following is not this option, called "Profile" or other, anyway, is under the VPN selection

4 . Select the enterprises that need to be trusted

5. Click " Trust ", then you can open the corresponding app.

Simple tutorial.

iphone open app shows untrusted enterprise developers can't open