Even though their (experimental) incognito-blocking feature didn't work for me, maybe it will work for you. You should test the feature on a few separate occasions before relying upon it.) But I've never tested it, and I don't know whether or not it would work reliably.

(Norton Family claims to be able to email you after someone uses incognito mode on the device.

If Norton Family alerts you that incognito has been used, perhaps you could confiscate the device from its user for a day or two. Or you could use Norton Family's incognito detection. You could lock down the device completely (though this is almost impossible to do correctly) and then to make sure that the only browser which the user can access is a browser which is incapable of incognito browsing. If you want to prevent incognito browsing, I see a few options: Please note that our incognito blocking feature is still experimental. In a help center article, Qustodio LLC does admit: Even after an hour or more, Qustodio had no idea that I was using Chrome's incognito mode. Incognito browsing still worked perfectly, and was not blocked or even hindered whatsoever. (I was using a phone running Android 4.1.2 and a recent version of Google Chrome.) I personally have tried Qustodio's 'Block Incognito Browsing' feature. Once you've read the end of my answer, you will see why.

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