Focus is described as 'Mac app that blocks distracting websites and applications so you can get peace of mind, and get some work done!' and is an app in the Development category. There are more than 50 alternatives to Focus for a variety of platforms, including Mac, Windows, Android, iPhone and Google Chrome. The best alternative is Cold Turkey, which is free. Other great apps like Focus are LeechBlock (Free, Open Source), Forest (Freemium), Freedom (Paid) and SelfControl (Free, Open Source).