Smart cards are everywhere — from public transport to office access, events, and retail. But what’s the difference between a MIFARE Ultralight card, a classic MIFARE card, and an NFC card? In this guide, we dive into how each technology works, their real-world applications, and the trends shaping their future — from eco-friendly materials to mobile integration. Whether you’re planning a large-scale event, managing secure access, or exploring digital transformation, this article gives you the insights you need to choose the right solution.