Leaving for a cruise on Saturday and wanted to ask some questions... Gf and I both have android phones (LG Viper 4G LTE and Samsung Galaxy S3) we want to take on board for use of the camera/video capture. We won't need to make/receive calls, send/receive texts, or use the internet for anything. I was planning on just switching our phones into airplane mode as soon as we get to the port but I was wondering if that shuts off ALL connections? I know there's some other settings for turning off mobile data but that's unnecessary in airplane mode right? Also, I have no idea what all apps have permissions to use location/data without me really knowing. Just want to make sure we can use our phones as cameras without being charged a dime by Sprint. Thanks.