I understand you're looking for information about SecureCRT licensing. However, I should clarify that there is no legitimate "free license" for SecureCRT beyond their official 30-day trial. SecureCRT is a commercial product from VanDyke Software, and using cracked versions, keygens, or unauthorized license files is software piracy and violates copyright laws.
Alex decided that for critical professional work, the rock-solid security and time-saving features of a licensed copy of SecureCRT were worth the investment, while using free tools like PuTTY for simple, non-commercial home projects. Securecrt License Free
is free and supports tabs, themes, and multiple shells (PowerShell, CMD, WSL). I understand you're looking for information about SecureCRT