Apple's platform can feel arbitary and capricious at time. One rule applies to you, normal users and app, while another to Apple and their apps.
Checkout these two payment flows 👇
Apple's own iCloud payment flow
Normal iTunes payment flow
What the fudge!?!
The iCloud payment journey is missing the “double tap” home button to confirm. In thie case I was simply investigating what the "Buy" button tap would do. I did not expect it to buy and buy it immediately. Yet because my face was ever present, I was immediately charged.
This is just wrong. A very bad and inconsistent UX.
It is at best neglectful, at worse uncaring. Sure it was just £0.69. It could have been £25 or £199.
It's these situations that I really feel that Apple is letting us (and themselves) down.