You now need the iOS device in your hand with an active SIM card or cellular service. KnowIT must be downloaded directly into the phone you want to monitor. SIM cards can be changed after installation.
Go to Cydia (If you don't have Cydia, you need to jailbreak the device to get it).
If you would like to discuss the installation of KnowIT on an iOS device or need assistance see our forum KnowIT iOS installation discussion.