I can't find an answer to this anywhere... not even in the Apple docs.

我找不到答案这地方…甚至在苹果的文档。

youdao

Much like Microsoft Word had a model for GUI-based word processing in MacWrite, touch-optimized office suites have been developed by or snapped up by Microsoft's competitors, including Apple ( iWork), Google ( QuickOffice) and RIM ( Docs To Go).

ENGADGET: Switched On: An Office outside the Metro

Besides Google Docs, I've also used a number of free or cheaper options, including OpenOffice and Apple's Pages and Numbers.

NPR: Review: Microsoft Office Pricey, But Good Value