McGill English Dictionary of Rhyme with VersePerfect
Full user review
"Good---but quite bloated now"
It's free. Can't complain about that.
This used to be a comprehensive, easy-to-use program without lots of unnecessary bells and whistles. Unfortunately, ver. 2 adds a text editor, online lookup services, alternate viewing modes, and lots of other stuff---and a very confusing interface.
This is a good example of the concept, "less is more."
It's always a temptation for software developers to add more and more features, just because they can. This app has become so complicated, I think the average user---say, a songwriter who's just looking for rhymes---will find it overwhelming.
Maybe the author will realize that a good rhyming dictionary doesn't have to be all things to all people, and resume offering a simple, effective version of it as well.
Meanwhile, my advice is: Try to find a copy of version 1 and use that instead.