Hi, I'm Dutch, living in France. I recently upgraded SnagIt while changing from Windows to Mac. My Mac is in Dutch and for some reason SnagIt is in French. I do not find where to change this, so please help.
In macOS the language that apps use is determined by a system-wide preference, found in System Preferences > Language & Region. What do your language settings look like? I'm guessing it's similar to what you see here, what I've found is that since Snagit doesn't have Dutch translations, macOS will pick the next one down on the list. If you move English up to 2nd in the list, then Snagit should be in English (after relaunching it). I hope this helps!