Da Accordo di licenza del programma Enterprise per sviluppatori Apple ( qui )
“Internal Use Application” means a software program (including
extensions, media, and Libraries that are enclosed in a single
software bundle) that is developed by You on a custom basis for Your
own business purposes (e.g., an inventory app specific to Your
business) for specific use with an Apple-branded product running iOS,
watchOS, and/or OS X, as applicable, and solely for internal use by
Your Employees or Permitted Users, or as otherwise expressly permitted
in Section 2.1(f). Except as otherwise expressly permitted herein,
specifically excluded from Internal Use Applications are any programs
or applications that may be used, distributed, or otherwise made
available to other companies, contractors (except for contractors who
are developing the Internal Use Application for You on a custom basis
and therefore need to use or have access to such Application),
distributors, vendors, resellers, end-users or members of the general
public. For the sake of clarity, Internal Use Applications do not
include third-party applications even if some customization has been
done.