It is May 2022 and still no offline mode for IOS? Protonmail privacy is of no use to me when i cannot access my own emails offline. I gave it a try, paid subscription and patiently waited for years. Time (and a patience) is running out though. Offline access should not be a special feature in a year 2022 but a standard part of service and it is a dealbreaker for me.

AFAICT - ProtonMail is an "abandoned" service, at least, as far as the mobile apps go: they haven't been renewed in years, they are tired, dated, barely usable apps, belonging to 10 years ago.

The fact that they lack even the most basic functionality that even the most threadbare mobile client apps provide for granted (threading in folders; offline access) shows that, as far as Proton management is concerned, we, the users, are taken for granted too.

5 years later when request was created it still not implemented.

This should be in the mobile apps, at the very least

Recently stumbled on this.. How is it possible that this feature is not there? Seems as one of the basics. Insane.. Just add something as simple caching of all mails below configurable size X until cache filled. Then just delete oldest to cache latest.

Offline needed for when Internet unavailable

Same. I have occasionaly a weak internet connection, work in trains, hotels etc. Still need to be able to see my older emails.

Need this

Offline option PLEASE.

Offline Storing of messages and the ability to send a message to an outbox like what Gmail does. Whatever is done offline, it goes into effect online. Whatever is done online, it go into effect offline. That is what the Proton Email system should be able to do.

Couldn't agree more. Even when conserving battery, or in an area of poor data I can't look at any emails or attachments. This is a significant issue for me, and would make protonmail perfect for my needs.

Believe it or not, outside of San Franciso, LA, New York, London, and Switzerland, there are places with limited or no connectivity. Some airlines don't even offer WiFi on their flights...I know, I know, first world problems, right?

Well, for those of us who spend our time in some of these more rustic places, we still want/need to access our email. Many apps do this already (Outlook) and even mail apps for iOS. The thing is, even on the old iPaq PDAs from ~2003, I could work offline, respond to email offline, and everything would synch up the next time I connected. In the older system, we could specify how much of the email we wanted for offline use, first nnn number of emails, enable folder by folder for offline use (you'd need folders for that...voted for it also), or exclude synch of items with attachments. Just look at the old literature for Compaq iPaq's circa 2002 and it will sell you on the features.

When you get your MacOS desktop app (I voted for that too), you should have the same/similar functionality for laptop users.

It would be a huge help to have this capabilities. For example, when traveling aboard, my data is turned off and in many cases I need to refer to a email. Currently, I cannot, without a internet connection. A cache/offline capabilities would be a great.