I have an idea I would like to see made into an app, but don’t know if it is possible and who could program it for me.
I would suggest you contact a university and get a non-disclosure and other documents in writing before sharing any ideas unless you are willing to give up total control of your ideas.
Here is Samsung’s Policy and good advice for you.
Samsung Electronics and its employees do not accept, review or consider ideas, suggestions, concepts and the like that have not been officially requested by us (“Unsolicited Submissions”).
This is to prevent any potential dispute or misunderstanding as to the similarity between Unsolicited Submissions and our internally and independently developed products, technology and services, and further to advise potential submitters to take care to protect your own creative endeavors.
We ask for your understanding of the purpose of our policy and that you do not submit any unsolicited general ideas or suggestions in conceptual stages.
See more about Samsung’s unsolicited ideas policy at THIS SITE.
Samsung Developer Community
Any particular department of a local university?
Most have a Software Engineering department.
I would suggest you contact a university or build your own platform