We are very upfront about our tech stack. It is clearly stated in my post.

Regarding whether electron apps are desktop apps or not, we can go on and on about it. I do understand the demerits of Electron technically but I also see merits in using it for startups like ours where we can quickly build and test with users.

Regarding trusting with users' cryptocurrencies, we don't hold any cryptocurrencies. They remain on the exchanges.