WordPress.com has always been one of the most user-friendly and convenient solutions for people to create their own website in a matter of minutes, but it came with several restrictions that wouldn't allow them to fully customize their website utilizing themes or adding new features through community-based plugins.
All this has now changed as Automattic announced that WordPress.com Business plan will now support plugins and third-party themes, something that was previously exclusively available to the Wordpress.org ecosystem. It's the community behind WordPress that has made it the most popular web platform out there.
Tens of thousands of beautiful themes and useful plugins that can provide additional functionality are now available for all WordPress.com users who have opted for the Business plan, which comes at the, admittedly significant, price of $21 per month. Furthermore, Business plan users will also have access to real-time concierge support with live chat to help them fully benefit from the new features.
Source: WordPress Blog