I used some widgets of Elfsight and they are really cool! This is a timesaver for developers and can actually help to boost a website. If you're a developer and buying this plugin to create websites for clients, I think 10K monthly visitors are fine, because you can ask your client to buy a separate widget. But before he can test how it works. I think this is one of the greatest deal regarding WordPress (but from Elfsight Dashboard you can integrate it not only in WordPress, but they also have a script that you need to integrate to your website). Thanks, AppSumo and Elfsight for a great deal. Highly recommend!

P.S. and their support is amazing.