Hypatia is described as 'Research tool for the Linux desktop. It's designed to provide at-a-glance information about the topics you're reading, or about things you're curious about. It lets you find definitions, explanations, and answers related to the text on your display' and is an app. There are 1 alternatives to Hypatia for a variety of platforms, including Web-based, Android, iPhone, Android Tablet and iPad apps. The best Hypatia alternative is Wikipedia, which is both free and Open Source.
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.
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