All users have access to all of the tests without registration. There is no reason for students to register, since the additional features are only useful for teachers. Registration is free and teachers who register receive complete record-keeping of student grades. They have access to more precise test-generation tools, can create single tests with questions from different categories, can create matching and multiple choice questions, and can access a public test library.
Browser Requirements: Internet Explorer 7+ or Firefox 2+ or Safari 3+. Macintosh users may receive a more stable and reliable experience from Firefox. In whichever browser you choose, cookies and JavaScript must be enabled.
ThatQuiz uses the vector graphics library by Walter Zorn. The source code for this library and its licensing particulars are available at walterzorn.com. This library, as with all of the web pages and interactive quizzes found on the ThatQuiz site, comes WITHOUT ANY WARRANTY, without even the implied warranty of merchantability or fitness for a particular purpose. The graphics library by Walter Zorn is the only portion of this website available under the Lesser General Public License. Other source code is not generally available for public release.