Does tinder app have to be open?

No, Tinder can be running in the background, or as a background service on your phone. The app and its background service will update your Tinder profile as you move around. No. All it takes to be part of the pool of people that others will see is to have a recency <1 week.

Who is owner of Tinder?

Tinder (app)Founded2012OwnerMatch GroupCEOJim LanzoneIndustrySoftwareEmployees200+3 more rows