This is a beautiful and functional photo sharing app, and I've had a lot of fun with it. Highly recommended. Congratulations to the team!
Don't mean to distract the conversation but am I the only one who is getting a little tired of the term "beautiful" in the titles here? That should be up to me to decide. It seems like it's always being used as link bait.
I'm not sure why this was downvoted. A similar thought occured to me; that like "minimalist" has been by a similar group of people, the word beautiful is being diluted of its meaning. Beauty's in the eye of the beholder, and I've never thought to use it to describe a UI, no matter how well thought out or suitable its colour scheme. Now very suddenly it's become the de jour adjective of a new generation of apps, along with "delightful", and I'm suspicious it's more based on fashions amongst the startup crowd and less on more objective realities.