Tinder, OKCupid, Grindr and other apps share personal data with advertisers

Researchers in Norway say the data-sharing appears to violate European data privacy laws. In the U.S., groups are asking state and federal regulators to investigate whether the practices are illegal.
— Read on http://www.npr.org/2020/01/14/796427696/study-grindr-tindr-and-other-apps-share-sensitive-personal-data-with-advertisers