It has met with controversy over limiting the number of "likes" a free user can give in a certain amount of time, as well as charging prices for different age groups.As of late 2014, an estimated 50 million people use the app every month with an average of 12 million matches per day.Companion apps were being developed by different companies allowing users to, for example, use the user's heart rate to determine which direction to swipe instead of the user swiping with their hands.The main companion site for Tinder has been Facebook, as Tinder users connect their Facebook profile to their Tinder accounts for verification and profile details.Instead of swiping right for a profile, the user swipes up.The app notifies the user if they have been Super Liked with a blue border that surrounds the profile of the person who Super Liked them.Candidates who are most likely to be compatible based on geographical location, number of mutual friends, and common interests are then streamed into a list of matches.
a members-only service, offering their most exclusive features: Passport, Rewind, Unlimited Likes, five Super Likes per day, one Boost per month, and more profile controls.
However, once you have matches on the app, you were able to send "Tinder Moments" to each of a user's matches at once, allowing each match to like or not like the photos.
The site also has verified profiles for public figures, so that celebrities and other public figures can verify they are who they are when using the app.
In the app's settings, users have the option to type a word that suits their gender identity.
Users also have the option to have this displayed on their profile or not.