PicStats

Get analytics data from any Instagram account.

Reviews
Discussion
You can analyze your own account, your friends' accounts or even your brand's competitors' accounts. You'll learn the best times and days to post, the best tags and filters to use, who your top commenters and likers are and a bunch more awesome data.
I think this is really helpful for quite a few metrics, but it would be better if I could set custom date ranges for the data I want to extract.
I second @ashleylaurel's comment about setting date period. For most of my metrics, re: tags, the high scorers were for the same image. Would also encourage making the graph for filters more readable, especially on mobile. Overall, a great first pass. Hope that it continues to evolve.
This is exactly what I was looking for! Simply perfect, looking forward to making this a part of our reporting for all our ventures and campaigns :)