Firstly, 1topspy doesnt work on iOS devices. It supports only Android phones but operating system compatibility is still a big question mark because it doesnt work on devices running the latest Android 7.0 Nougat.
And to my surprise, 1topspy doesnt offer 24/7 live chat support. This means if you encounter a problem or technical issue you can only report it by sending an email to them and then wait for them to respond to it. Very infuriating and annoying. They are still stuck in the stone age.
The features arent too impressive either. The GPS location tracker feature was complete let down as it only gives you the current location of the target.
In contrast, advanced spy apps like XNSPY provides complete location history along with time and date stamps. In addition, XNSPY has a geofencing feature that lets you draw virtual boundaries around unsafe zones.