M-commerce refers to commercial transactions conducted through mobile devices. It allows companies to reach a wide range of customers based on their location and purchase behavior. Key challenges for m-commerce include keeping apps and mobile sites up to date with the latest operating system versions, ensuring secure payment methods, and providing customers with a fast and privacy-focused experience. M-commerce platforms include mobile websites that can be accessed directly through a browser, as well as mobile apps that must be downloaded and allow companies to track customer loyalty and usage.