I'm planning to write a certain program and I didn't see any similar program up to now. However I suppose that similar programs already exist.
I already searched in the internet but I didn't find any similar software.
I'd like to know if/which similar programs already exist.
Would such a question ("which programs do have such a feature") be on-topic on this or another SE network site?
(On StackOverflow I was told that this site would be the correct one but I have my doubts about that.)