M Keys ACR122U - Mifare Keys is a free Android application developed by MTools Tec. This app can help you save money by generating dynamic keys through the UID String and adding them to MTools. It allows you to manage keys of Mifare Card with Dict Mode or Inrc Mode. Additionally, it works well with inner NFC and external device ACR122U.

With the help of this application, you can easily distribute cards without needing to buy an expensive machine. The app provides a straightforward way to generate dynamic keys and manage Mifare Card keys. The Dict and Inrc mode options make it easier to manage keys based on your preference. Moreover, the app supports both inner NFC and external device ACR122U, making it versatile and convenient to use.

Overall, M Keys ACR122U - Mifare Keys is a useful application for anyone who needs to distribute cards and manage Mifare Card keys. It is free, easy to use, and compatible with both inner NFC and external device ACR122U.