Downloads Youtube videos as webm which is fine. Not so fine is the QR code watermark stamped in that needs a paid licence to remove. That info should be upfront, before download and install, not afterwards. A pity because I like their ethos, their transparency around donation problems they found using Paypal (tl;dr use stripe.com, not Paypal) and their support for Kiva donations. As they say, they need to eat too. Just let us know about QR codes first :)