If you are creating a WorkApp and you need to share your app with internal and external collaborators who may not have a Smartsheet license, you must make a request to your system admin from the Manage People dialog.
To share WorkApps with unlicensed users or free collaborators, an additional purchase (WorkApps collaborator pack) is required.
For information about how to purchase a WorkApps Collaborator pack, please contact Smartsheet Sales.
If you need access to an App and you do not have a Smartsheet License (Individual Plan or above), you can request your App Builder to give you access. Once you get access to the App, you will be notified via email.