Help needed. iPhone WIFI connects but app can't find drive.

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)

http://kb.sandisk.com/app/ask/ 

http://kb.sandisk.com/app/chat/