tl;dr: Singapore's government has launched FirstDate, a dating app for public servants aged 21-35 that uses the Gale-Shapley stable marriage algorithm to produce mathematically stable matches where no two users would mutually prefer each other over their assigned pairs. The app enforces one match per cycle with a 72-hour decision window, Singpass identity verification, and reveals contact info only on mutual acceptance. Unlike commercial apps optimized for engagement, FirstDate is designed to get users off the platform.