Question: Is there an educational platform that uses a coin system to make quality education more accessible to people in developing countries?

For an educational platform that uses a coin system to help make high-quality education more accessible in developing countries, School Hack is a great example. This interactive social learning platform uses artificial intelligence to improve learning through conversational dialogue and tools like a plagiarism checker and knowledge management. With a coin system, it's designed to lower barriers to entry so students in developing regions can access high-quality education.

Another great resource is Khan Academy, a free, nonprofit online learning platform with a vast library of educational materials in many subjects. It also offers personalized learning, so students can learn at their own pace and fill in gaps in knowledge. Although it's not designed around a coin system, its accessible and free materials can greatly improve education for students everywhere.

Although not focused on a coin system, AI Tutor offers personalized learning experiences with sophisticated AI and large language models. With features like customized learning paths and immediate help for complex subjects, it can help students in developing countries learn more efficiently and better grasp the material they're learning.