If banks and governments keep writing apps only for the duopoly, then there is the argument that the duopoly becomes a public utility and should be opened up.

This view would also protect FOSS projects that emulate the iOS environment (e.g. Wine but for iOS)

IMHO, it does not have to change the duopoly, as long as it creates sustainable options for those who want to escape that duopoly. In that way it‘s already a success.

There is no reason it can’t break the ‘duopoly’.

It clearly isn’t going to do so overnight or in a year or two.

But it easily could over the 5-10 year timeline. A distributed App Store plus an experience that is more attuned to the needs of users than iOS or Android can accomplish that.

To solve the ‘bank’ problem all it needs to do is provide a really solid PWA story.

What it shouldn’t do is provide Android compatibility.

Signal has given some, probably very little, support to the Ubuntu Touch port now known as Axolotl.

https://github.com/nanu-c/axolotl

I'm sure that if it grew in popularity they might be inclined to support it further.

> At what point will WhatsApp or even Signal consider providing a web-app

I have Telegram on my Pine Phone and it works great.

It also runs a proper version of Firefox (even if it does identify itself as running on Android.)

Isn't the Signal client GPL? Seems you could fork or write your own client.

I'll agree, and add that it's not clear that people really want privacy. Not that we've been given a choice, but the very first thing that the major players are going to say is that people want the all knowing experience that Google and FB provide.