NXP has SDKs and mobile apps for it: https://www.mifare.net/en/products/tools/ https://www.mifare.net/en/products/tools/ There's also different kinds, for envi

NXP has SDKs and mobile apps for it: https://www.mifare.net/en/products/tools/ https://www.mifare.net/en/products/tools/ There's also different kinds, for environments with high security demands you're not supposed to use DESfire cards, not Ultralight: https://www.mifare.net/en/products/chip-card-ics/ https://www.mifare.net/en/products/chip-card-ics/