moshe
It depends on what you mean by “support Hebrew”: do you mean as a source language (OCR language) or as a translation target language (for translating to Hebrew)?
In the first case, Lookupper does not recognize Hebrew text on the screen because Windows OCR lacks a Hebrew OCR model, and creating a custom OCR model for Hebrew would be a challenging task.
In the second case, I could add Hebrew as a target language for Lookupper Dictionary and Translator.
By the way, the Pro version has the same language support as the free version. So there is no reason to buy the Pro version in your case, because when I release the new version, you will be able to install English-Hebrew dictionaries on the free version.