Yes the connect app is updated and works with iOS 9. latest version of the app for iOS 9 is 1.0.15 (1115). Latest FW is 4.0.2 (238) If you ahve this it should work. I have been using mine all day.
SanDisk does monitor the forum but this is mostly a user forum. If you are looking for direct contact with sandisk contact their support.
Consumer Products
1-866-726-3475 (English)