Sidetracked is described as 'is introducing a new way of doing good by you, and by others. In this digital age, humans have become incredibly busy, and are not always able to make a difference in the world. With Sidetracked, now you can' and is an app in the Office & Productivity category. There are more than 25 alternatives to Sidetracked for a variety of platforms, including Mac, Windows, Android, Google Chrome and Linux. The best alternative is Cold Turkey, which is free. Other great apps like Sidetracked are Forest (Freemium), Freedom (Paid), StayFocusd (Free) and FocusMe (Paid).
Freedom is an application that disables networking on an Apple computer for up to eight hours at a time. Freedom will free you from the distractions of the internet, allowing you time to code, write, or create.
SelfControl is a free and open-source application for Mac OS X that lets you block your own access to distracting websites, your mail servers, or anything else on the Internet. Just set a period of time to block for, add sites to your blacklist, and click "Start.
Focus is a Mac app that blocks distracting websites (like Facebook and Reddit) and applications, so you can improve your productivity. It has lots of awesome features like scheduling, showing motivational quotes on blocked pages, whitelisting and pomodoro support.