You can remove a single data source or delete all the data from your Ampll account.
If you have multiple connected accounts, Ampll will remove your deleted account from the list once it is deleted, but your session will stay connected to the Accounts tab. If you had only one account prior to the deletion, Ampll will close your session once your data is deleted will return you to the login screen.
Once your account has finished deletion, Ampll will log out your session and return you to the login screen.
To uninstall Ampll from your Mac computer, navigate to your Applications folder, click the Ampll icon, and choose Move to Trash.
To uninstall Ampll for your Windows computer, go to Windows Settings, Apps, Apps & Features, and locate the Ampll app. From the menu on the right, click Uninstall.
While removing data sources or accounts removes any authorizations to your Google or Microsoft accounts on the Ampll side, you can also clean up privileges from the provider side.
Google's article to remove third party application access is here. https://support.google.com/accounts/answer/3466521?hl=en
Microsoft's article to revoke permissions from applications is here. https://docs.microsoft.com/en-us/azure/active-directory/user-help/my-applications-portal-permissions-saved-accounts