How to install an app remotely on iOS?

Question

Mobile development

We were approached by one person with such a request, we need to remotely install a "mobile spy" something like msy (everything is cool, we just need to have a phone with us, then we would install it).
My question is, are there any ways to install the application remotely? Something like a remote desktop for Windows ...
Or maybe someone has come across such programs that can be installed remotely via SMS?
It shows a video saying, look, a person receives an SMS and after a few minutes, the wine is already installed in our admin panel .. what kind of program is not visible
. , I will be glad if you can tell me something how to solve the problem differently and without a soldering iron)).

Answer 1

On ios without a jailbreak, this is not possible.

Answer 2

Just for show: Are you aware that this is not legal?