Apt non (enfin je crois pas), mais deborphan le fait lui.
#man deborphan
...
DESCRIPTION
deborphan finds packages that have no packages depending on them. The default operation is to searchonly within the libs and oldlibs sections, to hunt down unused libraries
[^] # Re: OpenPKG
Posté par Jean . En réponse à la dépêche Nouvelles hebdo Debian du 16 janvier. Évalué à 10.
#man deborphan
...
DESCRIPTION
deborphan finds packages that have no packages depending on them. The default operation is to searchonly within the libs and oldlibs sections, to hunt down unused libraries