The Standard version extracts data from three different sources to get business details. The Business version extract data from seven sources, in both cases the data is merged and duplicates are removed from the final results. With the Business version you will be able to extract more businesses, more emails and more contacts. To give you an example, if you search for "Restaurant" in San Diego CA with the Standard version you will get about 1200 results, the Business will return about 3000 unique results.

The Business version allows Bulk Searches, you can upload a file with multiple cities or search an entire State or Region at once, and will extract rating scores and number of followers.

In the People module in the Standard version you get up to 200 results per search, in the Business version up to 1000 per search (but because you can make bulk searches you can get thousands from each run).

In the Business version you get extra SEO data like Domain and Page Authority, referring domains and backlinks for each company.