Instant encrypted messaging with threads & channels

No. Your conversations are not mined for data and not used as training content, by us or by anyone else. End-to-end encryption makes that a structural guarantee rather than a policy promise, because the content is not readable by the platform in the first place.

Two differences that matter. Slack encrypts in transit and at rest but can read message content; Autono is end-to-end encrypted. And in Slack a decision made in a thread stays in that thread, whereas in Autono a conversation can close into a logged decision and owned work without anyone retyping it.

Not currently. Autono is a hosted service. If your requirement is that data never leaves infrastructure you control, that is worth raising with us directly before you evaluate further, because it is a genuine constraint rather than a configuration option.

A conversation that reaches a decision can be closed into the decision log directly, carrying the reasoning with it, and can generate the resulting tasks at the same time. The record is a by-product of deciding rather than a separate act of discipline someone has to remember afterwards.