How to install an app from a third party resource on iPhone 13?

Question

iOS

Hello!
We are working on a mobile application, now at the testing stage, I need to test the interface (design) for inconsistencies between the finished assembly and the design layouts. The problem is that I can not install the application, it gives a trace. error (on the screen). Error text: "Unable to install. This application cannot be installed because its integrity cannot be verified." Phone model: iPhone 13, software 15.3.1.

Googled, clearing the safari in airplane mode does not help, Google does not give other solutions, I do not know what to do. Who faced - help please. Please don't rumble. Let's not waste time on idle chatter. Thank you, have a nice day.

Answer 1

Phone added to test? It looks like there are no promoters