Android and Apple can both use Skype. I have Skype but I never use it. In most cases iMessage for Facebook messenger are always the default routes to take when you have internet access but no signal. Also, when friends haven't been able to afford their monthly bill and their phones get "shut off" they do the same. Smart phone bills can be so expensive. Unless you're "grandfathered in" with an old cheaper plan like I am on T-Mobile. But then factor in a leasing fee for a new phone, plus insurance, plus a data plan and you will be well over 100 dollars a month. It's ridiculous. It's no wonder the majority of my friends, in their late 20's and early to mid 30's are still on family plans with their parents or siblings. Totally understandable why an 18 year old boy didn't have a cellphone provider and just used it's Wi-Fi capabilities. Kam on the other hand I suspect had a family plan, thus did have a provider. This also got me thinking about the phone recovered with their bodies. Was it Bryer's, Kam's or even possibly Leonard's as I mentioned briefly a few days ago. I also wondered too, obviously they kept the phone off the majority of the time to preserve the battery but did they turn it on once a day so they knew the current date? Even without a signal and the phone is turned off it still keeps the current date and time via the phone's "Real Time Clock." I'll also add, in regards to getting stuck in Cold Lake, I think the boys were driving through that little town in the middle of the night, Kam was very likely exhausted from all the driving, (it makes me exhausted just thinking about it) happened upon what looks to be the outskirts or an indiscreet part of Cold Lake and parked for the night to get some sleep. Just an opinion but I think that's exactly what happened.