Also they force subscriptions to make the actual price you pay the most prominent. Common dark pattern is to put "8.99" a month, then under it in tiny text "Billed immediately as 107.88, renews annually". To pass Apple's approval, they would have to write "107.88" in large text, as that is what you are actually going to be charged.
1Password got me with this. I was getting it for free because my work used it, but when I left, write/autofill was suspended. I had planned to move to a different service as I dislike 1P8, but I was in a hurry to just get things working again, and $2.99 a month is cheap enough to get me by for a few months. I enter my CC details. Get charged $39.47 (10% for GST). I go back and look at the site and realise the monthly price is billed annually. I don’t recall being quoted this price when I entered my CC details, perhaps it was displayed in a way that was easy to miss for people in a hurry. In any case there’s a dark pattern in their checkout flow. It’s disingenuous to to advertise $2.99 and bill $39.47. Imagine a cafe that advertises the price of their coffee as 40c then in smallprint “times 12 made in a single payment”. The advertised price should match the billed price for all products and services.
