Hi,
Our agents run on Windows, Linux, Raspberry and other devices. We don't have an agent for Android. We tested quite a bit and it was pretty much impossible to do it so that folks could get quick alerts and it used up the battery very quickly since it's constantly using the network and consequently, data.
However, you can install the agent on a PC/Laptop that you'll keep on at the location you'd like to monitor and can log into the control panel to view your reports using any mobile.
Hope this helps.