While Geniatech is unlikely to sue an individual user, distributing a cracked key is illegal copyright infringement. Furthermore, many "key generators" are hosted on malicious networks monitored by your ISP.
Many users searching for an "EyeTV 4 activation key" are frustrated. Geniatech has not updated the iOS app meaningfully in years, and streaming TV standards are moving to DRM-protected streams (like ATSC 3.0 "NextGen TV") that EyeTV cannot record. Eyetv 4 Activation Key
Alternatives to consider instead of fighting with EyeTV 4: While Geniatech is unlikely to sue an individual
Unlike older versions (EyeTV 2 and 3) which often used a simple serial number, EyeTV 4 uses an online activation system. When you purchase a license, you receive a unique Activation Key. This key communicates with Geniatech’s servers to verify the license and unlock the software on your specific Mac. Geniatech has not updated the iOS app meaningfully
Without a valid key, EyeTV 4 runs in "Limited Mode" or a trial period, usually restricting recording features, export options, or displaying a watermark.