Starting today, however, Apple is simplifying things and making Keynote, Numbers, Pages, iMovie and GarageBand all free in the App Store for anyone in their ecosystem.
iWork is actually a suite of productivity apps — Numbers, Keynote and Pages — meant to rival Microsoft Office and Google Docs. Meanwhile, GarageBand and iMovie are more consumer-focused tools, for music and video editing.
iWork apps require macOS Sierra to run, but GarageBand is available for machines running Yosemite or later and iMovie will run as long as you’re up to El Capitan or higher. On mobile devices, iWork requires at least iOS 10.0, while iMovie and GarageBand require at least iOS 9.3 and iOS 10.2 respectively.