Unfortunately, in order to develop apps you need to be able to code. without the code, you basically have a GUI frame that does nothing.
XCode (the Apple supplied developer tools) are probably some of the more easy to use tools to get you started. Theres a lot of tools to help you (its a more visual way of coding, i.e you can drag and drop elements into your application, such as scroll bars and so on) but all that really does is add parts to your code that you may need to tweak and edit.
If you are looking to automate day to day tasks, try Automator (its in your Applications folder.) It can make day to day tasks much easier and doesn't require an understanding of computer language.