There are dozens of clones of angry birds. Some of them as good or possibly better. And we aren't talking about clones of polished products here, we're talking about a site that admittedly took a 2.5 hours to make. The comparison to a fart app (though their site is vastly more useful, and a unique idea AFAIK) is apt.
Lets take something with a bit less stigma. Background-changing apps. There are, what, 100+ of them? Probably more? Lots of them even share some backgrounds, which is visible if you just skim a dozen from the app store's images. And almost every single one has probably paid back the dev time it took to make, if not through sales then through ads.
Lets take something with a bit less stigma. Background-changing apps. There are, what, 100+ of them? Probably more? Lots of them even share some backgrounds, which is visible if you just skim a dozen from the app store's images. And almost every single one has probably paid back the dev time it took to make, if not through sales then through ads.