notes and metadata for apps must be approved by App Review before they go live. Before these changes, developers on Apple's iOS and Mac App Stores had the ability to change description text ...

‘Unlike macOS, iOS notarisation involves a human-review process where Apple employees manually review apps before they are “approved” or “rejected” for distribution (in Apple’s own words).

Rydgård says iOS devices are "generally fast enough ... and since then, the company has approved an app that can emulate Game Boy and DS games and another that can play PS1 titles.