I am making an app for showing an image gallery in iOS, and I came across two samples.
I want to know the differences between Three20 and EGOPhotoViewer. I mean both apps are developed by same developer (enormego).
I would recommend against Three20 for 1 reason and 1 reason only: Three20 code is a bit messy and generally there are a lot of interdependencies with other Three20 classes, ones you might not need. It's sucks to include the whole Three20 library in your project just to use the photo browser. I'd like to keep things as simple as possible.
I've used the EGOPhotoViewer one in the past and while it generally worked fine, I did have some minor issues with it, which I sadly can't remember. Eventually I found a replacement in MWPhotoBrowser, so you might consider that one as well.