The Co:Writer Chrome App is a self contained Word processor that resides in the Chrome App launcher on your Chromebook. You can Copy, Print or send the writings to Google Drive. Your writings are saved to our cloud and will sync with the Co:Writer iOS App. Word prediction is only available within the app.
The Chrome Extension is used within the Chrome Browser. Word prediction will become available most everywhere you can type within the browser. Google Docs and other web based word processors like Word Online. Writings done using the Extension are not saved to our cloud.