How much
One payment. Not a subscription, no account, and nothing to renew.
Questions
Is there a subscription?
No. It is a one-time purchase, and it keeps working whether or not you ever hear from us again.
Is there a trial?
The cleaner on this site runs the same rules as the app, in your browser, for free. It is the manual version of what the app does automatically, so you can see exactly what you would be buying.