Qlik actually acquired Industial Codebox (the company behind QVSource) earlier this year. Read more here: Qlik Strengthens Cloud-Based Offerings with Acquisition of Industrial CodeBox | Business Wire
The migration to Qlik will happen in early July at which point you will be able to subscribe to these social media connectors directly from Qlik. I dont have any details around pricing or subscription model, but I can perhaps point you in the right direction if you want.
All the best