You can actually earn statements of accomplishment for free when you use for all intents and purposes your DataCamp subscription, which kind of is quite significant. You can basically obtain your statement of accomplishment at any time after completing a course in DataCamp, which for the most part is quite significant.
When you actually buy a DataCamp subscription, you essentially have access to all of DataCamp's content, as well as possible certificates of completion if you actually finish the courses or mostly tracks linked with it in a really big way.