+1 on your support of Rhyme Genie! I use that with its free companion lyric writer Tune Smith. Great apps, and the dev is a good guy, to boot!
I'll have to take another look at BIAB. I bought a medium small version (they have too many versions) a few years ago, but never really got into it (part of that was I hated the ancient-looking UI).
What I really need to do is learn how to put a song idea together quickly! Nice work!