matterwiki has been discontinued. Similar apps include Wikipedia, which is free and open source. Other options are WikiSpooks.com, WikiIndex and Every Page Site. In total there are four Encyclopedias like matterwiki for the web, Android, iPhone and iPad.
Free content, multilingual online encyclopedia written and maintained by a community of volunteers through a model of open collaboration, using a wiki-based editing system.
United States
WikiSpooks is a global alternative encyclopedia on politics, spy craft, deep state intelligence, and conspiracies, free of corporate influence, partisan politics, or government propaganda for historians and truth-seekers to read, edit, and share.
Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a 'work in progress' founded in 2006.
Our mission is to create information on everything and make it accessible to everyone.
