LT competitor: Trinka

Hi Team,

Do you know about Trinka (BEST LanguageTool Alternative ─ An AI-powered online grammar checker - Trinka)?

“You can easily switch your LanguageTool Software Premium balance with Trinka Premium!”

As far I could see it’s closed source. You can’t run your own instance. And do they offer a forum like this? I didn’t see a link.