Sites and apps similar to Grokipedia include Wikipedia, which is free and open source. Other options are Kiwix, Encyclopædia Britannica, WikiSpooks.com and Justapedia. You can choose from more than 10 Encyclopedias like Grokipedia for iPhone, iPad, Android, Mac and Windows.
Citizendium, powered by MediaWiki, is "an open wiki project dedicated to creating a free, comprehensive, and reliable repository of structured knowledge". Unlike with Wikipedia, a contributor must register using their real name and verify their identity.
Wikipedia, better than ever—on iPhone, iPad, and Apple Watch. Discover the world and enjoy beautiful typography with this sleek app.
Germany
EU
Golden is a self-constructing knowledge database built by artificial and human intelligence with the goal of mapping all human knowledge.
United States
WikiLaxus is an online wiki where a wide range of topics in different states of reality (e.g real, fiction, hybrid, hypotheses, fanmade, etc.) coexist, and anyone can edit it!.
