Typically, any user of the cloud apps that Insycle supports can sign up and start using Insycle independently right away. For some apps admin permissions are required.
Try it here.
Insycle lets you work on the same data that you're permissioned to in the underlying app.
You cannot view, update, or delete data through Insycle that you'd otherwise not been able to in the app directly. The same data permissions are adhered to.
Insycle simply facilitates easier working with your data.