Zigbang, the operator of Korea’s leading real estate brokerage app, is expanding its portfolio with smart home appliances, releasing a digital door lock without passcodes in the global market. According to the company on Wednesday, it launched its Haven smart door lock in Singapore and Hong Kong as well as Korea. It is the first artificial intelligence (AI)-embedded smart door lock that the company released after acquiring Samsung SDS’ home Internet of Things business in 2022.