Then just say that, and leave the rest of the suggestions on creating a product, finding a market, etc. out of it. It's like the tired old "if you get x people for y a day" or "if you could only get [arbitrary small percentage] of a [giant market]" marketing speak that any semi-experienced dev knows is completely misleading.

There are devs struggling to make a few hundred sales in the iOS/Android app stores while producing quality products. Selling software isn't easy, and making it sound trivial well...makes it sound like a scam.