It took me a week to make my first app, with no prior objective-C experience. Though I did know how to program in C beforehand and the app was really simple (it

It took me a week to make my first app, with no prior objective-C experience. Though I did know how to program in C beforehand and the app was really simple (it was a bar game to measure reflexes). The apple guides are really good and there are so many free examples. Also Standford has a great series I used after I got started, if you have any prior programming experience it will get you up to speed fast.