The short answer to this question is yes. You can create page contents, messages in other languages, even in SMS & Email messages, pages, forms, and even on some message prompts. The software supports non-English characters such as French, Hebrew, but may not support all of them.
Here's a good example of an email in Hebrew:
Here's an example of a campaign form in Vietnamese:
The software is still GROWING. If there are non-English characters that you find not supported in the software yet, you can let us know and we'll send a request to add them. You can also send a feature request for it directly here.