Android is one of the two major operating systems that tablets use (the other being Apple’s iOS) Being able to use Android can increase the amount of content that is available for a tablet, so whether or not a tablet uses Android can be an important question.
The nabi 2S is an Android tablet, running 4.2 Jelly Bean. However, the nabi 2S gets apps from the curated app store, App Zone, so children don’t have access to the full Android ecosystem. In Mommy/Daddy mode, though, parents can choose to install the Amazon Appstore, greatly increasing the amount of apps available.