[Markismus]

Ah, so you have to convert the Kobo dictionary to a recognizable format first. I think there are scripts/converters that do that. Search this forum for that.

A low level comparison would be word count, than differences in words-entries, than differences in description.

I don't think that modern 'updates' really improve/change much for the VanDale.

There is a VanDale 1898* that is really good: It's from before the uniformization of Dutch language. Would love to have that one in a convertible format.
Also, I would love to have the Dutch Etymology (pink cover) in digital format. It's nice to have them in the bookcase, but I only take it out for my kids.
Yep, those are basically the only things the GWHN 2019 misses out on for me.

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*IIRC, it was included in a digital VanDale Edition somewhere around 2005 or something.