You didn't mention but the ability to add any photo and use it as a filter could be more killer feature of this app. You should also consider an ability to share filters.

Filter effects were very hard to understand, can't you apply filters first and then show it in the bottom list like Instagram?

'Add your own filter' feature is pretty amazing. This is definitely not a regular photo editing app. Loved it!

Nice. Really good app for enhancing and applying filters to my pictures. I like those funky messages and scores!

Good app daily uploaded new filters so very awesome.

Great app! Loved the popularity score feature.

Filter number feature is very good.