Looks like it only has native share options for Instagram and Facebook. Seems a bit petty not to offer Twitter. How about let me decide where I want to share?

Looks like it only has native share options for Instagram and Facebook. Seems a bit petty not to offer Twitter. How about let me decide where I want to share? From an implementation point of view, this app doesn't use UIActivityViewController, but instead one they've rolled themselves. They could in fact have added Instagram to the built-in share view controller but decided not to. This also takes away options of Twitter, SMS, email.