Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Eduflow - Digital learning that actually teaches students something
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Kialo - Kialo is the platform for rational debate. Empowering reason through friendly and open discussions.
foobar2000 - An advanced freeware audio player for the Windows platform.