Google Drive
Getting Started with Google Drive
Drive for mobile devices
Available for both iOS and Android, the Google Drive app allows you to view, edit, and upload files to Google Drive using your mobile device. Whether you're proofreading an important document or showing off a presentation, the Google Drive app makes it easy to access and edit files on the go.
Viewing files in the Google Drive app
Google recently introduced separate apps for documents, spreadsheets, and presentations, which can be used in addition to the Google Drive app. To learn more about the new apps, check out Google's blog post on New mobile apps for Docs, Sheets, and Slides.