Soundboards, are they worth the effort?

A friend of mine wants me to help him make a soundboard app with burps. I keep telling him that there are too many such apps and that it isn’t worth, but he insists that there’s always free space for one more.

I know it’s just a simple app, but I would appreciate your opinion on the subject.

Thank you for your replies and time.

A app should make fun and should have an unique thing. If you haven’t an unqiue thing so they can replace your app and moving to other apps but that haven’t to be. Maybe they use sometimes yours and sometimes not.
if you haven’t both… no uniques and no fun so sure you will have not much users. But its my oppionion

to have downloads you should use a big name like… “Game Of Thrones Soundboard” for example… this means that your app will get banned sooner or later.
if you use just “funny soundboard” you will get 1 download per day…

I would concentrate on something else.