After so much of trail and error towards learning IOS development/distribution of app for enterprise, I made my first “HelloWord” app and successfully deployed it on the iphone via custom distribution medium.

I was excited to see that the app (Enterprise distribution not via app store) has finally got installed.

When I try to open the app, I am struck with a message

To resolve this, it’s pretty simple to fix this issue.

1. Go to Settings  –> General
2. Go to Profiles & Device Management
3. Tap on the Profile you want to work on (You could have more than 1 profile in this list)
   

   Trust Enterprise Developer

4. Tap on Trust button.
   

   Trust Enterprise Developer

That’s it.