I have been using boldbeast for years now. I think I had it on a Symbian os Nokia phone more than 10 years ago.
I am very satisfied with the call recorder, of course I purchased it.
Now I am using lineageos, Google free, and I can't seem to find the subscription option in the about page. Of course I would much rather pay a one time fee for the app, and get some special code designed only for me. But I understand that this is not available in a one time payment form.
Is it only with me? The no subscribe button at the about menu? Is it because I don't have a Google account?