Is it appropriate to announce paid (not free) products here? Swift related of course, and having a fully functional free trial period.
I'm no expert on forum guidelines however IMHO if the product is a dev tool targeting Swift developers posting here seems reasonable, however, I'm no expert on the forum guidelines
If it's a consumer-focused app that happens to be written in Swift however, it may not be relevant to the Swift forums.
Perhaps a question to ask could be "is this product interesting to and targeting Swift developers"?
Official guidelines here.
Thank you for the link. The official guidelines say nothing about free/paid products, but among allowed things are
things that may be of broad interest to other Swift programmers
I believe my product is.
a developer tool that supports Swift, like an editor, build system
My developer tool is both.
Commercial products are on-topic here as long as they have Swift-specific content, yes. An editor with Swift syntax highlighting or something like that would qualify.