[danarmak]

That's interesting, but from the copy on the page it seems to target micropayments for reading content published on websites. Which is an important and hard problem.

On the other hand, paying a dollar a month to use a service like email doesn't pose a technological problem. But since most services, unlike email, are walled gardens, I can't pay a provider to give me access to e.g. WhatsApp or Facebook without serving ads or collecting my data.

[networth]

Right. Web is first target, apps is second. Think of an app you install on device, and apps registering as a publisher can talk to this app to get your subscription status, and not show you ads.

The promise is with sufficient adoption by users and pubs, new pubs will have incentive to do this. Except maybe apps by large corporations.