Slacker is described as 'Never show up as idle on Slack, Microsoft Teams, Skype, etc. Slacker moves your mouse pointer for you whenever you are idle - the result is that you always show as active on any corporate/office instant messaging tools running on your work computer' and is an app in the sport & health category. There are more than 10 alternatives to Slacker for a variety of platforms, including Mac, Windows, Linux, Flathub and F-Droid apps. The best Slacker alternative is Amphetamine, which is free. Other great apps like Slacker are Stimulator, NeverNap, Caffeine for Mac and InsomniaZ.