Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
foobar2000 - An advanced freeware audio player for the Windows platform.