AngularJS: controller vs service

Question

I have read a couple of posts regarding proper usage of angularjs entities: services, factories, controllers and directives.

My particular concern is a comparison of

Answer 1

In addition to what have been said above. Controllers may also hold the logic of your application while the application isn't so big. But as you application grows you would need to move the logic to use services(like factory). This would allow variables and functions needed around your application to be easily accessible.