Instaview

Instaview screenshots

Instaview is a Mac OSX app to view Instagram photos.
Instaview 1.0 : Stream Choices

Alternative downloads

Carousel - The best way to experience Instagram on your desktop
1.5.1
Carousel lets you check Instagram photos from your Mac.
Flume
2.8.6.5
Manage your Instagram account directly from your desktop.
PhotoStack
3.8.1
Browse your Instagram feed, photos you've uploaded, photos you've liked, etc.