Terms
Whyfor for iPhone is licensed through Apple. A subscription, including the 3-day trial, is billed by the App Store. You can cancel in Settings on your iPhone before the trial ends.
This website does not sell Whyfor, does not offer a web checkout, and does not open the app for you.
The yearly price on this site is filled from the App Store listing. Until that price is set, the price slot stays empty.