$39 a year. Fourteen days free first — no card, no account.
Download Holos and use it free for fourteen days — no card, no account, nothing to cancel. That is the whole trial, and it is the same software you would be paying for.
Ready to buy? A licence is $39 a year and covers every Mac you personally use, with thirty days to change your mind.
Your licence key arrives by email. Payment is handled by Paddle.
In the meantime, the description of what it does is accurate, and so are the privacy policy, the terms and the refund policy — they were written against the code rather than from a template.