The classic is the best of the four. You have a winner with the free app, however the loop timing on the three new fireplaces are not seamless and instead are very noticeable. In order of best to worst, 1st Classic, 2nd Stone Age, 3rd Campfire, 4th Modern. The Classic has all the right elements, the flames stay in frame and the video is loop perfect, nice crackle, but no poker :-(. Na, who needs an arm in the video, especially when you are trying to make the app small. Did you not have an HD source so you couldnt upgrade it? I saw the fade-to in the Stone Age and then an abrupt cut. Also I cant see any wood. Stone Age should still have some wood and coals. The Campfire flames seem a bit too high, and flow out of frame. This could be my second favorite. I like the wind blowing, again I noticed the seam in the video. At first, I thought my hard drive was busy, but it happened again and then again, so then I knew, its the seam. Trouble with flame height, no real control outside, with wind and all. Seriously, Modern can go. The crackle seems out of place and and the visual around the flames arent my taste. I wont mark you down for it, its just not pleasant to look at. If it were in my house, I would buy a new house, or a wood burning stove insert to replace it. the brick seemed too fake. The glass and silver things, yeah thats just modern yuck. I think you can redo these, maybe have the fade-to somewhere in the middle and trial and error to get the ends seamless. I dont know how much trouble you went through to make the additional fires. They seemed a bit more rushed than the Classic, which is almost flawless. Keep up the good work, I want to see some updates. :-)