When spy software iPhone is installed, it doesn't mean that everyone will realize that you have. It produces no signals but you may also set it with signals if you want. The progress of all that is happening is monitored either through the use of a computer or another phone. You will only need to log in then go to the updates and view what is recorded. Any action that you have tracked will give the results one you have logged. The exact time when this is taking place you will get the update. You may confront the person immediately to get the alert.