Lindy Dreyer gives the logic behind why having their own app is with the wrong path for associations. While using mobile is important, and having your web site and emails be easy to read is important, a dedicated app is not.
So, first someone has to have a phone that works with native apps–for the most part, that’s an iPhone, Android, Blackberry, and maybe a Windows phone or other smartphone. Then, assuming your app works on all of those phones, they have to download the app. Then they have to USE the app. See? That’s three significant barriers right there.
Note that Lindy wrote this article more than 3 years ago, and it's still true.
