Difference between the Scale and Business subscription plans
The Scale plan allows the scraping of an unlimited number of URLs, however, the use of Residential proxies is not included in the Scale plan, hence the price calculator next to the Scale option. No additional charges are applied for the use of Datacenter proxies.
To find out more about the differences between Datacenter and Residential proxies, check the following article: Difference between Residential and Datacenter proxies
Bandwidth is measured based on the data transferred while rendering the sitemap URLs, not on the size of the resulting data file. To estimate bandwidth costs, use the Proxy Bandwidth Calculator on our website’s Pricing section (click on Unlimited URL credits).
Another key difference between the Business and Scale plans is the default number of parallel tasks: 5 for Business and 2 for Scale.