I think that some of the comments about Youssef are a bit unfair. He produces his own SDR radio (AirSpy) and his own software for it, SDR#. This takes up all of his time along with further upgrading of his software and future projects.

 

So why should he also modify SDR# so that it will work on a competitors receiver such as SDRPlay? Doing that would just make a competitor's product more flexible than it already is.

 

SDRPlay is sold with no software at all, so why should a competitor be expected to supply it with some? That is like buying a Ford with no motor and expecting GM to send you a free one :-)