How to use the developed application only within the company?

Question

iOS

There is an application developed for our company. It will be used by a maximum of 15 people.
It is undesirable that it be in the App Store, since the functionality of the application is very peculiar.
Tell me how should I do?

Answer 1

1. You need to buy a developer license (~$100)
2. On the apple website in the developer.apple.com/ios section, you need to create an application and a distribution certificate
3. Next, you need to collect the UDID devices of your company's employees
4. You need to generate an AdHoc provision profile for your applications (in which to include the certificate and all UDIDs)
5. Next, you need to sign the application with this profile (for example, in xCode)
6. Put the ipa file on the server for download by employees
After that, the finished .ipa file can be downloaded and installed directly from safari on the iPhone.
There are many subtleties in each of these steps, but as a road map there is a place to start

Answer 2

https://www.testflightapp.com

Answer 3

read https://developer.apple.com/programs/ios/enterprise/ (specifically about in-house distribution)

Answer 4

what prevents to make a layer in the AppStore? (pre-install)