Match Group is bringing Tinder’s free background checks to two of the other dating apps it owns: Match (formerly Match.com) and Stir, a dating site for single parents (via CNBC). The system works similar to the way it does on Tinder: people can use it to see if whoever they’re talking to or planning to meet up with has a history of “violent and harmful behavior,” as the company’s press release puts it, though there is some nuance there that we’ll talk about in a bit.
When…