All you really need is Apple's developer tools and tutorials. They have a wealth of example apps and free books to download. You can also get WWDC videos from

All you really need is Apple's developer tools and tutorials. They have a wealth of example apps and free books to download. You can also get WWDC videos from recent years, also free, if you have a free ADC account. This is how I learned. I also bought a bunch of iOS development books but never ended up needing any of them. Between Apple's tutorials (and the skeleton apps built into xcode- check those out they are correctly designed) you can learn a lot and do anything you want. Every feature has a tutorial or example program (and you can search the example code by API call to find the relevant ones.) Also, these days with Storyboards its a whole lot easier to develop the UI for your apps. It really isn't that hard-- in fact, it is, by far, the easiest to develop for UI I've ever seen. (easier than Mac OS and a whole lot easier than Windows or Swing.) All the other resources listed in this thread are good too-- just pick what works best for you. The stanford course, for me, for instance, was too slow, I am always wanting to learn a specific thing at any given point in time and don't have the patience to work thru the course--- but if you want to work thru the course by watching a video each day without firing up Xcode because you spend your days writing code elsewhere, that might be the best way. Any competency in C++ will mean you shouldn't have too much of a problem-- hardest part is going to be using C++ again after the glory that is Objective-C!