The depressing thing is that I suspect someone will actually take him up on his "offer".

Isn't that pretty much illegal anyhow? Unpaid interns are not supposed to actually create products.

Edit: It almost certainly is; part of the conditions for unpaid internships are that "the employer that provides the training derives no immediate advantage from the activities of the trainees, and on occasion the employer’s operations may actually be impeded", and this is clearly false in his case. In other words, that job posting is not only immoral, but illegal.

Ok, now the worst should be that you have to build the app AND to pay to build it. I will post an ad like that somewhere, to see how it goes.