On Flashissue for Gmail's Privacy Page you can request and collect all the privacy and GDPR related information that Flashissue for Gmail is providing.
The privacy policy by is a legal document or statement that discloses how Flashissue for Gmail gathers, uses, discloses, and manges their customers' data.
The basis for Flashissue sharing, adding, uploading, hosting, accessing or sending personal data out of Europe. Vendors can also add a description of their own impact assessment for data transfers.