The Unarchiver ( ): This significantly expands OS X’s knowledge of compressed file formats, specifically adding in the ability to expand RAR, 7-zip, LhA, and StuffIt formats (the official app by the creators of the StuffIt format, StuffIt Expander, which is a free download from the App Store). It allows you to create apps for OS X and iOS and also create Dashboard widgets. Xcode ( ): Apple’s own programming toolkit and integrated development environment is free of charge via the App Store for anybody who purchased OS X.
You can run it to scan any files that look suspicious, such as those you’ve downloaded from a less reputable website. Unlike other antivirus programs, ClamXav doesn’t remain present in memory. Unless otherwise marked, the apps are free of charge and can be downloaded from the websites mentioned.ĬlamXav ( ): Adds on-demand virus scanning to OS X.
That said, there are some add-in apps that are part of a standard Mac setup for many users. There are a handful of exceptions where apps are needed to make up for rare deficiencies in OS X’s functionality-for example, Tip 387, Expand QuickTime Player’s Knowledge of File Types-but throughout the book a DIY approach and faith in OS X’s extensive built-in toolkit are encouraged. In this book I’ve deliberately avoided recommending third-party apps.
