Websites promising "cracked" versions often bundle dangerous malware, spyware, or ransomware.
You can find the official NTFS Read&Write by iBoysoft on the Mac App Store with flexible weekly or yearly plans. Iboysoft Ntfs Free License Key
For free software like iBoysoft NTFS Free, there's usually no need for a license key. Be cautious of sites offering "free" keys for paid software, as they can lead to malware or legal issues. Iboysoft Ntfs Free License Key