This Tinder Apple Watch app uses your heartbeat to find a match by Benjamin Snyder @FortuneMagazine July 10, 2015, 10:59 AM EDT E-mail Tweet Facebook Linkedin Share icons If you’re using Tinder for the Apple Watch, there may be no swiping required. That’s because a Texas agency has created a way for the app to be used on the new Apple AAPL device, and to use the device owner’s heartbeat to determine whether the potential match is a yes, or a no. The agency, T3, showed how the heartbeat monitor works in a YouTube video, which you can watch below. They’ve dubbed it “Hands-Free Tinder.” If the heart rate goes up, that’s a match. But if it doesn’t, well, that person’s passed for someone else. The announcement of the app comes as sales of the Apple Watch have been reportedly flagging since its launch. Fortune polled Apple analysts to see just how many Apple Watches they believed were sold during the first nine weeks of sales. The average? About 4.5 million units. Check out the hands-free Tinder app here: Subscribe to Data Sheet, Fortune’s daily newsletter on the business of technology.