To install www.350cp4.app 5.1 on your device
visit this page from your mobile browser only

www.350cp4.app is compatible with any iOS device
running iOS 8, iOS 9, iOS 10 & iOS 11

Jailbroken devies must have AppSync installed
NON Jailbroken devices must have iSignCloud
to install www.350cp4.app

Manually download www.350cp4.app .ipa from HERE
for installing via iTunes, iTools or iFunbox.