So I bought the original Meater not the Meater+, the range on the original Meater is in a word awful so if you went into it thinking you were going to get 30 feet or so of range then you are going to be very disappointed. But I read the reviews before I bought and understood what would be needed going into it.
So for my set-up I use my old cell phone as a gateway, I downloaded the Meater app on the old phone and it picks up the signal from the probe(s) and the phone sends the signal to my WiFi from there it goes to the Meater Cloud and I can check my cook on my current cell phone from anywhere. Even if I run to the store I can check on things.
It's more set-up at first but once it's set-up it works without a hitch, I should add that for this set-up to work you would need to have WiFi coverage where your cooker is set-up.