I tried it last year and I was not very excited. It did the job but I had faced a lot of issues. Recently, I had the need to look into someone's phone once more; tried Xnspy again. I am very impressed with how the app has improved within a year. There are many more interesting features added. All those analytical features weren't there as far as I remember which are very helpful if you are monitoring someone's phone for an anomaly (as you are very likely to find a trend or something very important on their cell phone).