The FlexiSpy is an excellent spy program intended for cell phones. The application can be installed on most smart phones with major operating systems (iOS, Android, BlackBerry, and Symbian). The program can be used by people who intend to obtain information on various issues. After installation, FlexiSpy offers a real-time tracking of conversations exchanged by instant messaging applications, so it is ideal for those who need to track conversation on whatsapp. Obviously, there are many other advanced functions, such as: interception and recording of calls made and received, listen to the surroundings of the mobile phone by the microphone, GPS location, tracking of e-mail, registry, passwords, remote control and much more.