Mac (9734 programs)

Pros: Very easy to use with guided tips all the way. Allows you to create as many project as you want. Adding team members is easy. Free to use in beta stage.

Cons: Lacks advanced project management features. Will require payment to use in the future.

Pros: Easy to configure. Allows you to block sites between various time periods. Allows you to configure password access to sites.

Cons: Will not stop you if you are determined to visit a site. No substitute for self discipline. Still allows Firefox to reveal your IP address to blocked sites.