Lacks obvious features and speed.

First off, this is opinion and I’m writing this because the app keeps bothering me to write a review to motivate them for updates. Ask and ye shall receive.

This ratings message covers some of the screen, so it’s just annoying.
The first thing lacking in this app is the ability to sort images by resolution, which would be helpful because images of the same background in different resolutions aren’t next to each other. A lot of wallpaper web sites detect your current resolution. Even just a line underneath the image or a mouse-over popup would be helpful. I don’t like to click into each image to see the size because as others have stated, this app is slow. Sometimes it’s so slow on fast connections it just times out. I’m not a big fan of the guess-a-category feature. This might be because the wallpaper tagging leaves a lot to be desired. After I’ve been goaded into writing a review I have to ask myself why am I still using this? The answer is, I’m not going to use it.

D.E. Davenport about Wallble Pro - HD Wallpapers