I’m sure that’s a big part of it, but it’s not an insurmountable challenge. Other software companies out there have made the leap…Quicken, for example.
But also, things like an Android app are just completely inexcusable for not having gotten done. An (albeit pretty bad) iOS app exists, there’s no reason an Android app at least on par could not happen pretty quickly.
The fact that this has not happened, nor has there been any real innovation…it just seems like EndNote has reached end-of-life status, even if Clarivate is not willing to admit it…