I wouldn't worry about their trustworthiness, at least, it isn't no1 issue. It cost a lot to create service like theirs.
My main point, it isn't competitive at all vs. market leaders (hardly vs any other competitor) + better established competitors would do it for free, whom have much bigger userbase (no data about zypto's active userbase).
Sure, it'll go through, so we'll see the result. The idea is good, but paying for this one doesn't make sense to me.