If you are considering using the Mifare Classic Card Recovery Tools Beta v0.1 ZIP free, we recommend:

For more reliable and up-to-date MIFARE Classic management, it is recommended to use established open-source projects: Android (Google Play)

While the current stable version is 4.3.1, early versions (v0.1) provided basic hex-data manipulation. open-source and available for free on Google Play report occasional device compatibility issues