Apple offers Pages, Numbers, and Keynotes, counterparts to Microsoft’s recently released Word, Excel, and PowerPoint. As you might expect, Google has now joined the fray with their Google Docs and Google Sheets iOS apps.
From a comment on Google’s official blog:
This whole thing is rather odd. First Google made Docs and Sheets part of Drive. Now it’s breaking them back out into their own standalone apps. Except that they’re still part of Drive as well.