I did this small app, just to make my life easier. And I thought that maybe others would need it too.<p>Sometimes I need to comment some videos with my friends and be sure that we're talking about the same moment - and this is the reason why it was created. But right now we use it on almost every video that we need to watch together - and it's probably because it's easier to chat in the same window... and synchronization is just an added value.