Encyclopædia Britannica is described as 'The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica, Inc., a privately-held company. The articles in the Britannica are aimed at educated adult readers, and written by a staff of about 100 full-time editors and' and is a popular Encyclopedia in the education & reference category. There are more than 25 alternatives to Encyclopædia Britannica for a variety of platforms, including Web-based, Android, iPhone, iPad and Self-Hosted apps. The best Encyclopædia Britannica alternative is Wikipedia, which is both free and Open Source. Other great apps like Encyclopædia Britannica are Grokipedia, Wikiversity, Wikiless and Scholarpedia.