Glitterly - The video editor for making short video clips of your apps

Sayonara - Linux audio player and music library manager

InVideo.io - Create thumb-stopping videos in mins for just $10/month even if you've never edited a video before!

Mopidy - Mopidy is an extensible music server written in Python. Mopidy plays music from local disk, Spotify, SoundCloud, Google Play Music, and more. You edit the playlist from any phone, tablet, or computer using a range of MPD and web clients.

Coub - Coub is an app that features GIFs, but the GIFs that you select and send to other people have sounds.

Untrack Me - Surf the web, free from tracking