According to cliché, your heart doesn’t lie—and creative agency T3 is putting that saying to the test with their new app. Hands-Free Tinder uses the Apple Watch’s existing heart rate monitor to transform the normal Tinder experience by removing your brain from the equation and focusing on your heart: For each potential match, the heart monitor measures whether your heart rate increases or decreases at the sight of their profile. An increase swipes right and a decrease swipes left, all without a single touch of a button. 

As Paulo Coelho wrote, “You will never be able to escape from your heart. So it’s better to listen to what it has to say”—even on Tinder. 

[h/t Fast Company]