Have authored 40+ extensions and chrome apps. You can check my profile reviews on same. Experience: new tab extension, bots, browser tweaks, deals & coupons, smart mail etc.
I saw their website & video, if you have purchase that plugins kindly share it so I can go through code. Most of the info presented in extension aren't available in aliexpress so I am sure they must be using some API in their backend.
Lets discuss details over chat.