How do I organize my photos/images by dimension?

[Archeryfinn]

I'd like a gallery app that shows the image dimensions on the thumbnail page so I can delete images which are too small.

 

[Rukbat]

You'd probably have to develop one - I can't remember any Gallery-type app that shows sizes. (You could use a file manager, and base it on file size, but that's probably the closest you're going to get without developing your own app.)