I cannot install WeDJ on my iPhone.

Please check the followings:
　-Check the internet connection.
　-Did you sign in for App Store?
　-Check available storage on your iPhone.
　-Does your iPhone satisfy WeDJ system requirements?
*For the latest WeDJ system requirements, please see at App Store > Compatibility.
https://itunes.apple.com/us/app/wedj-for-iphone/id1152297079