Not sure that you have seen or used all the apps, I accept that the free ones will work most of the time, after all a stopped clock is right twice a day
Define planned, most that I see have some planning, ie they know when the the kids are being picked up from school, or when the occupants are away. I have been to too many houses that were burgled while the owners were having their two weeks in the sun, tell me thats not planned. Opportunist burglaries are usually due to something like a window left open or seeing someone leaving the house.
GSM dialer cant tell you when its not working, a dualcom is polled every hour or every 20 min depending on the grade, the arC will call keyholders when it fails to pole, if you have a gsm dialler you are blissfully unaware. I have had customers that regularly forgot to top up their PAYG sim in their dialer.
You are beginning to turn into Arfur, Logan