The connector add-on is free, but doesn't do much more than providing the connection between JIRA and the Flapps application.
For questions about the Flapps application, I would refer you to the applications website and/or its vendor.
According to https://marketplace.atlassian.com/plugins/jira-to-flapps-connector/cloud/overview, the add-on is free:
So it looks like the only costs would be what is published at http://www.flapps.com/pricing/
There are contact details for the vendor here: https://marketplace.atlassian.com/vendors/1210617
Hello Atlassian Community! Each month, we run a series of Spotlights to highlight Marketplace vendors and apps that our team thinks this Community would find valuable. In last month's Spotlig...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG