My Activity Diary imports your Fitbit data into Google Sheets. The app creates a spreadsheet in your Google Drive account called "My Activity Diary". Each night, the app downloads your previous day's Fitbit data and updates your spreadsheet.

You can view your Fitbit data and spreadsheet through the app. You can also view your spreadsheet in your Google Drive account, independently of the app. Or you can download your spreadsheet to import into Excel or any other spreadsheet application.

The app requires you to login to you Fitbit and Google accounts in order to function. Your phone must be on and connected to the internet for the app to update your data.