Grindr, the social network aimed at gay, bisexual and transgender men, is facing a firestorm of criticism for sharing users’ H.I.V. status, sexual tastes and other intimate personal details with outside software vendors.

The data sharing, made public by European researchers on Saturday and reported by BuzzFeed on Monday, set off an outcry from many users. By Monday night, the company said it would stop sharing H.I.V. data with outside companies.

The criticism of the company continued on Tuesday, with officials in Europe and the United States joining in. A consumer group in Norway filed a formal complaint with the country’s data protection agency, accusing the company of breaching European and Norwegian laws. Two United States senators sent a letter to Grindr’s chief executive, asking whether the app had asked users to opt in before it shared their most personal details with third parties.

In a statement on Monday, the company said that sharing user data with outside companies was a standard industry practice and that Grindr had “policies in place to further protect our users’ privacy from disclosure.”