Wikipedia vs World Book Online

Wikipedia is a free encyclopedia available on the web and through mobile apps, with editions in hundreds of languages, including editions with over one million articles. Volunteer editors create and revise content, check facts, cite sources, discuss entries, and moderate the encyclopedia. The Wikimedia Foundation hosts and protects Wikipedia, while editorial decisions are made by volunteers. The Foundation says the service is available without advertising or paywalls and is funded mainly by donations, not advertising, subscriptions, or sales of users’ personal data. The official Android app supports searching articles, changing languages, saving reading lists for offline use, and adjusting themes and text size. Its listing says the app has no ads, does not track or collect data, and encrypts data in transit. MediaWiki provides a REST API for interacting with installations including Wikipedia. The Foundation publishes a privacy policy, says it prioritizes speed, reliability, and availability during traffic spikes, and publishes transparency reports twice a year. Its financial statements are independently audited annually. Wikipedia is free at free.

World Book Online has no write-up on Specifiction yet; its figures are above.