slit is described as 'A modern pager for viewing logs, get more than most in less time' and is an app in the Development category. There are eight alternatives to slit for Linux, Mac, BSD and Ruby. The best alternative is less, which is both free and Open Source. Other great apps like slit are gnome-logs (Free, Open Source), most (Free, Open Source), macOS Console (Free) and lv File Viewer (Free, Open Source).
Moar is a pager. It's designed to be easy to use and just do the right thing without any configuration. Unlike some of its competitors, it applies syntax highlighting to source code by default and supports interactive search.