Udemy tests: immediate single answer check is a free Chrome extension developed by santriseus. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension allows users to run Udemy quizzes in "Review" mode, where questions are presented one-by-one and the correct answer can be checked immediately for each question. The progress made in the quiz is saved and synchronized across different browsers using Chrome Sync.

To use the extension, users need to complete the quiz in the default Udemy mode first. After that, they can navigate to the results page and reload it to inject the required scripts. The extension utilizes the quiz summary page with all the questions populated.

The motivation behind the development of this extension was to provide users with the opportunity to run tests in "Review" mode, similar to how it is done on tutorials dojo. This allows users to answer a few questions, check the answers, read the explanations, and investigate additional materials while staying in the context of the questions. It eliminates the need to answer all the questions and then review them, making the process more efficient. The extension also helps in restoring the question context, especially for exams with lengthy questions.