Yes, if you prefer to run DataGroomr inside Salesforce, you can install it directly through the AppExchange. This will create a DataGroomr tab in your Salesforce environment.
Tip: You may also use DataGroomr Lightning component, learn more about DataGroomr Duplicates Lightning Component
To install DataGroomr managed package, navigate to AppExchange and click Get It Now or navigate to Setup > AppExchange Marketplace and search for DataGroomr.
After installing the Package you'll want to add DataGroomr to your tabs.