No such program exists. Any website offering a "lifetime free license" is distributing pirated software.
Technically, yes, but it will show a license reminder dialog at startup, and after 30 days, you cannot open new sessions without purchasing a license. Securecrt License Free
Many organizations purchase volume or concurrent licenses. If you’re a student or employee, check if your IT department already provides SecureCRT as part of a site license. No such program exists
If your intent is simply to find a free tool rather than develop one, there are excellent, legal, open-source alternatives to SecureCRT: Technically, yes, but it will show a license