Try wordpress for iPhone (http://ios.wordpress.org/development/ http://ios.wordpress.org/development/) which has been developed for a long time. However I agree

Try wordpress for iPhone (http://ios.wordpress.org/development/ http://ios.wordpress.org/development/) which has been developed for a long time. However I agree that it's easier to pick a project with less code in it to learn. Another way is by writing an app.