A few good mobile spy apps for mobile phones that work good and I've had good luck with are.
FoneMonitor is leading web-based monitoring tool and mSpy which is one of the best spying tools that are available on the web.
I've used both of those spy apps with good results.
There are a few other spy apps such as appspy, Hoverwatch, ThetruthSpy and Mobile Spy.
I'm sure there's a lot of other spy apps for mobile phones but those are some mobile spy apps that I know of.