Earlier quoted context omitted.
There are a few that are fairly cluttered visually, but the vast majority are simply different , and I can't say, looking at them, whether or not they'd be any good in practice because I haven't used them , and I'm not so full of myself as to believe that I know everything about something based on a single picture of it. For instance, there's nothing obviously wrong with the interface of the grammar app currently at…
It's not a bad looking design, but it is a somewhat strange attempt to bring an iOS-specific UI element to a desktop application.
This does not apply to the desktop. On the desktop, you have a plastic puck you need to shove around a surface, which moves a pointer to a designated area. At the most advanced, you're massaging a glass tile, for the same effect. By merit of these facts, the interface must work differently.
It's a lazy design, by someone who couldn't be bothered to learn the correct UI paradigms for a desktop app. It doesn't make them a bad person, it doesn't mean they caused any grievous offense, it simply means they made a bad design. This isn't subjective.