iOS will discontinue PWAs leaving the Proton Mail app the main option to access mails. The main difference between the PWA and the app has been that the folder list is fixed in the PWA, while it moves automatically out in the app, as the app is overwhelmingly used on vertically held mobile phone screens. But for wider iPad screens a small ‚pin needle‘ could allow the user to fix the folder list on the screen leading to a better user experience and an almost identical user experience.