THE CONVERSATION - June 11 - According to AppAnnie, Tinder has been ranked as the most-downloaded lifestyle app in America for two years. While most dating sites attempt to connect users based on algorithms, Tinder does nothing of the sort. Tinder's approach to romance is straightforward and yet brutally effective. Matches are made using sparse criteria: Looks, availability and location. In a study on the brains of drug addicts, researchers found that the expectation of the drug caused more release of the feel-good neurotransmitter dopamine than the drug itself. Similarly, for those who may be expecting the next swipe on Tinder to lead to reward, serial swiping can start to look and feel a lot like addiction. A 2017 qualitative study of motivations for using Tinder found that love was a more common motivation for using Tinder than casual sex.