AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
CopyTrans Manager - CopyTrans Manager: The free iTunes alternative to manage iPhone, iPad and iPod without iTunes. CopyTrans Manager allows you to quickly drag and drop music and videos from PC directly to your iPhone, iPod or iPad.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
oandbackup - Make backups of selected apps on your device and restore from those backups.
foobar2000 - An advanced freeware audio player for the Windows platform.