I use the lorex cloud
app on my phone, but only occasionally to see whats going on at the wash, I dont want/need lots of features for the phone.
Lorex supplied a different
app when I installed the cameras in 2015, might have been the "home"
app? Anyhow the upgrade to the cloud
app was easy for me so I'm not sure why you couldnt just switch, iirc you got your cameras around the same time I did.