A few years ago, Zach Schleien began to notice a pattern in his online dating life. Conversations over chat features quickly fizzled, and when he went through the effort of meeting people for dates, there often wasn’t chemistry. It was only when he started arranging quick video calls early on that he started to find matches efficiently.

Fast forward to 2020, Schleien launched Filteroff, an app that schedules users for a 90-second video chat after matching with each other. Users can give each other a “thumbs up” or “thumbs down” afterward. If they both like each other, users can chat, schedule calls or meet in person.