Of course Apple copied apps from the App Store. As a developer you should expect that, and the solution is pretty easy, just look at Shazaam.
Pick an app that's sufficiently difficult to copy, at which point they'll try to buy you if they find the app sufficiently important to the platform. And if not, they probably won't spend the capital to try to dethrone you. If you make an app that say... changes alerts based on location, I'd probably expect it's just a matter of time until they copy your app.
Pick an app that's sufficiently difficult to copy, at which point they'll try to buy you if they find the app sufficiently important to the platform. And if not, they probably won't spend the capital to try to dethrone you. If you make an app that say... changes alerts based on location, I'd probably expect it's just a matter of time until they copy your app.