It's not really the same. Depending on what your app is supposed to do and what features it would offer, the developer would choose the programming languages/general tech stack for your app. I think if you are from the us there is that app called fiverr or something where you could get in touch with a developer who could implement your app idea.

Also I don't want to sound rude, but the whole "Hey man I have an idea for an app" is a big meme in the developer community because more often than not, those "ideas" are very bad since they come from people with no or little technical knowledge who have unrealistic expectations.