Founded in the Ukraine in 2016, Liqui is a crypto – crypto exchange site without fiat currencies. You get a new one-off password sent to your email every time you log in, which might be time consuming but in combination with 2FA means you remain secure. They have savings accounts, too, but the interest rates they quote are so high that we are sure there’s something about that in the fine print, if we could find it. The site is low on information about the company itself and there are a lot of negative reviews, although this is the ‘norm’ for such platforms. So try with insignificant sums first and see how they measure up.