Evain

Evain is a South Korean application software developer established as a social venture in Gwangju in August 2012. The company focuses on creating IT services that address societal issues, operating under the mission of providing valuable, technology-based services. The venture is privately held and has received venture capital funding from investors including Orbit Startups, SOSV, Bigbang Angels, and Capstone Partners.

The company's flagship product is "WhosNumber" (뭐야이번호), a caller ID and spam blocking application launched in August 2012. This application identifies unknown numbers, blocks malicious calls such as voice phishing, and provides users with AI-driven analysis of a number's activity patterns. The service gained significant traction, surpassing 10 million downloads by April 2016 and subsequently expanding to markets in Southeast Asia and the United States. Evain's business model for its consumer applications appears to be based on the app's availability and features, while also offering its core technology to other businesses.

Evain offers its spam judgment technology as a standalone AI library for businesses looking to implement spam filtering capabilities without developing their own database. This B2B service can be provided as an API for easy integration or as a custom-designed solution tailored to a client's specific needs. Beyond its anti-spam technology, the company has diversified its portfolio by developing a community app for designated blood donations, connecting donors with patients in need, and a customizable survey system for businesses to gather and analyze customer feedback.

Keywords: spam blocking, caller identification, mobile security, AI applications, WhosNumber, social venture, voice phishing prevention, call filtering, designated blood donation app, customer survey system, API service, mobile utility, telecommunication security, collective intelligence, application software, South Korean startup