I've been using Wallpaper engine for some time now and have had no problems with it. It works as it should and is very light weight so really any computer can run it.

It has a ton of backgrounds to choose from and different settings that you mess with and set to your liking.

Cost is not a issue at all for it only being $3.99.

If you want a app that you can download animated backgrounds then get this.

-Light weight application
-Very cheap
-Lots of backgrounds to choose

I've been using Wallpaper engine for some time now and have had no problems with it. It works as it should and is very light weight so really any computer can run it. It has a ton of backgrounds to choose from and different settings that you mess with and set to your liking. Cost is not a issue at all for it only being $3.99. If you want a app that you can download animated backgrounds then get this. -Light weight application -Very cheap -Lots of backgrounds to choose