PhotoStackr for 500px

Improved Slideshows Show off your photos to everyone !
- Music
- Ken Burns effect
- Random order
- Full resolution AirPlay display (and mirroring)

Larger thumbnails No more tiny squares when browsing
- Changes size of thumbnails view from small to large

Alphabetic navigation Quickly get to that contact name "Zulu"
- Navigate Groups, Users and Tags using the standard iOS alpha list

Stacks What we had been planning since the first release. To actually organize your and others photos. Create Stacks for special projects, or kind of photo.
- Multiple Stacks (aka Folders)
- Stack photos, photo lists or people
- Create and delete stacks at will
- Make a Stack available offline

Full offline support No more photos erasing themselves from the cache.
- Create an Offline Stack and everything you put in there will remain on your iOS device
- Delete the photo or folder from an offline stack and all of its photos will be deleted immediately.

Save to Photo Library Finally being able to save in Original size, or in batches
- Choose photo size to save to Library Large or Original ** Images may not always be available, depending on the photographers download restrictions
- Choose Photo Library Album to download to (requires iOS5)
- Batch download to library from any Photostream, Set, Explore, Stack, etc