Weight Watchers and the S4

[AC Question]

Why can't I get the WW app to download onto my S4. I keep getting the error message that it is unable to download to my USB or my SD card?

 

[Golfdriver97]

Why can't I get the WW app to download onto my S4. I keep getting the error message that it is unable to download to my USB or my SD card?

Welcome to the forums.
Have you tried downloading over wifi? If so, I would email the developer and explain the issue. Give them your device and Android version.