edX

edX is an online learning platform that partners with universities and institutions to offer a wide range of courses, professional certificates, and degree programs. It provides structured learning paths, on-demand video content, and certifications, catering to individual learners and businesses looking for corporate training solutions.

edX offers professional certificate programs, which are essentially curated learning paths composed of multiple courses. These courses are taught by instructors from various universities and institutions, aligning with the 'expert-led courses' feature. The platform provides on-demand video courses and offers certifications upon completion. They also have 'edX For Business' which caters to team plans and corporate training. While it doesn't explicitly state an 'all-access subscription' in the same way as the concept, it offers various programs and courses that can be accessed, and the 'Professional Certificate' acts as a bundled offering. Progress tracking is implied through the structured nature of the courses and programs leading to certificates. Multi-device access is also mentioned.