How does mSpy allow you install the app remotely? This version uses iCould credentials of your wife’s phone. In this case, the phone should back up regularly, every 24 hours. If it does not, you will need to access the device physically in any event. It is obvious this system is more problematic. Besides, there are few testimonials available about this particular product. The majority of people prefer to have a five-minute access to the target device to download the original version.