I use omnivore and I got this press release emailed to me, but the email also said:

First, all Omnivore users are invited to create a free account ElevenReader. Our team has already shipped valuable updates to the ElevenReader app, and it’s incredibly powerful as a go-to reader and audio listening app that’s free:

Next, all Omnivore users will be able to export their information from the service through November 15 2024, after which all information will be deleted.

So, it sure sounds like the hosted version of Omnivore is done…