Zoho Reports now enables you to track the activity of all users in your account, from administrator to public users, through Audit Logs. 

A reporting database will be automatically created in your account and the activity logs will be updated in this reporting database. You will also get an insightful Dashboard, the Access Log Analytics capturing the essentials of user activity such as Daily Access Trend, Access Count by View Type and by Users, etc.

This option is available for all paid plans of Zoho Reports. You can choose to log the users' activities in your account using the Access Logs toggle button in the Settings page Audit tab. Click here to learn more on this.