Ok, I figured out a way (I hope). I kind of got clever. So, what I did was I wiped their phones clean and installed mmguardian on them from scratch during the setup of the phone. (They had a way of tapping the screen during setup that brought up a qr code window that installed it during the initial setup of the phone to make it more integrated.) This part lets me know what the kids are doing on the phone. But, we're not always watching it. So, I installed tasker on their phones and restricted their access to it. But what Tasker is doing is writing a line to a text file every 2 minutes with the date and time. Then I used Drop Sync to sync that file to my Dropbox account. My computer is, of course, connected to that dropbox account. So, I wrote a shell script that constantly monitors that file and, if the hour in the file becomes too old, send me an alert via email. If the time stops incrementing in the file, that means the kids are up to something and turned it off or wiped the phone. They won't know how to setup tasker and dropbox sync to get these files to generate again.
I'm stuck on the script a little. I'm trying to write it so it will send me a text message or an email when it notices something wrong... but I'm stuck on that. But, at the least, these files are generating and the script, minus the email alert, is working. I'm sure I'll figure out the rest of the script.
