To the regret, there is no standard method that would allow users to see the history of incognito mode on iOS. When an incognito window is closed all data relative to that session is cleared. However, if you are aiming at tracking the activity then the third-party apps or tools may contain the tracking capabilities, but hardly they are 100 percent accurate and they only come with advanced setting configurations and often have no assurance for incognito data. You can also read Delete Chrome incognito.