Sidekick is described as 'Is how you take back control of your most valuable resource, time. As the world gets increasingly distracted, we must be intentional with how we spend our time because once it's gone, it's gone forever' and is a anti procrastination tool in the office & productivity category. There are more than 50 alternatives to Sidekick for a variety of platforms, including Mac, Android, Windows, Google Chrome and iPhone apps. The best Sidekick alternative is Mindful : Focus & Screen Time, which is both free and Open Source. Other great apps like Sidekick are LeechBlock, RescueTime, Cold Turkey and One Sec.