Udemy offers a broad selection of courses in various fields including technology, business, personal development, design, marketing, and more. Whether you're interested in learning a new programming language, improving leadership skills, or exploring creative arts, Udemy provides thousands of courses to meet diverse learning needs and interests.

Udemy courses are priced individually, with costs varying based on course content and instructor. Some courses may be free, while others range from $10 to $200 or higher. Udemy often runs discounts and sales, so it's beneficial to check regularly for reduced prices.

Yes, Udemy awards a certificate of completion for most courses after fulfilling all requirements. These certificates help demonstrate your skills and progress but are not officially accredited by educational institutions. They can add value to your resume or LinkedIn profile.

Udemy offers a 30-day money-back guarantee on most courses. If you're unsatisfied, you can request a refund within 30 days of purchase. Exceptions may apply, so it's recommended to review the specific refund policies for individual courses, especially those bought via third-party platforms or with downloadable content.

Yes, Udemy courses are accessible on mobile devices through the Udemy app available for Android and iOS. The app enables learning on-the-go, with features like offline viewing that allows downloading content for offline access. This provides a flexible learning experience for busy schedules.