22€ is the "remove the ads I'm blocking anyway" price, no extra features. That's the one I usually always pay, for every app with a one-time-purchase ad-removal option. Because I really hate ads, don't like to have adware on my phone and I don't like not paying anything since my adblockers are really effective.

The "Ultra-Lifetime-Option" is 110€, which comes to $162 CAD or two Baldur's Gates or two Unraid OS lifetime licenses.