Yes, it can see private browsing on Android devices with operating systems of 6.0 and above. Private or incognito browsing is designed to enable you to browse certain websites without them showing up on your browser or search history.
However, being one of the best internet filter options, the Qustodio app can still detect and report these pages and websites visited while in incognito mode. For Android 5 devices and below, Qustodio has designed a feature to enable the detection of pages visited in incognito mode. This feature can be found in the settings of the Android app.
The feature is still experimental and is currently only available on Android devices and is compatible with Google Chrome and Android stock browsers.