Encyclopaedia Universalis vs Vikidia

Encyclopaedia Universalis is an online encyclopedia for reference, teaching and documentary research, with editions for individual subscribers and educational institutions. Its consumer collection contains more than 55,000 articles across subjects including arts, history, law, literature, chemistry and medicine. Subscriptions provide unlimited, ad-free access, along with an Atlas of physical, administrative and location maps, country information and historical views; Données Pays country comparisons; and the Cordial dictionary with 120,000 entries. Comparison limits depend on the number of countries selected: up to 12 with all data, 13–50 with five data points at once, or 51 or more with one data point across at most 25 years. For schools, Universalis Junior serves primary pupils, while Universalis Éducation has secondary and higher-education editions. Education resources include mind maps, country data, a personal space, Open-Dyslexic font and dark mode. Articles are written by authors and professors and reviewed by the editorial team. The service is available on web, Android and iOS. Plans include Découverte at €1 a month, then 10,90 € per month after the first month, and Zen at €79, paid once for two years.

Vikidia is a free collaborative online encyclopedia designed mainly for readers and contributors aged 8–13. It runs on the web, and anyone may improve articles, layouts and organization. Articles are expected to be verifiable and neutral, using language and presentation appropriate for that age group. Editing can be anonymous or tied to an account, with earlier versions saved so changes can be restored. Content may be copied, modified and redistributed under CC BY-SA 3.0 and GNU licenses when attribution and license terms are retained. Vikidia supports school projects with guidance, examples and contact information for teachers and students. Its legal information says children are not asked for real names and registration email is used only for technical purposes. The Vikidia association, a French non-profit founded in 2006 and headquartered in Rennes, maintains the site without advertising and accepts donations. Help is available through The Scholar page, chat, Discord and IRC. Hosting is provided by OVH.