Here are the suite of licenses or agreements for your review:

Python open source license https://www.python.org/download/releases/2.7/license/   currently version 2.7 is required to produce AI blocks for iOS product
OpenCV open source license http://opencv.org/license.html
C++ is standard and does not contain any licensed source for your review here  https://stackoverflow.com/questions/22589213/is-c-an-open-source-project-which-community-developes-it
Apple licensing terms and conditions here https://developer.apple.com/terms/
Any additional licenses of libraries required for the process of creation software will be sent to you for your review.
The technology changes and it is impossible to determine which one additional libraries will be best suited for your requirements. The only certain languages to be used in the projects are as above.