Tlen Official

Tlen was founded in 2003 by Tomasz Kłos and Maciej Sulewski, two Polish entrepreneurs. Initially, the service was designed as a simple instant messaging platform, but over the years, it has evolved to include various features such as VoIP, video conferencing, and file sharing. Tlen's user base grew rapidly, and by 2005, it had become one of the most popular instant messaging services in Poland.