VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!
foobar2000 - An advanced freeware audio player for the Windows platform.
UserZoom - Test, measure, and monitor UX with our cost-effective all-in-one platform. UserZoom is a cloud-based solution for online usability testing.