Aaeru isn't the one who wrote VNR and doesn't claim that she did. VNR was written by someone else who i've actually spoken with via email on some things, who has little or nothing to do with Aaeru and i don't think is even involved in fuwanovel.
that being said, TA & ITH are a perfectly usable alternative to VNR, although they lack a number of the features. i'd recommend getting all three programs and trying them out, VNR has serious problems with mistranslations (being cloud based, it suffers from the google apps issue, which is to say that its open to editing by complete fucking idiots who screw up the most basic things i.e. うん was, for the last six months, translated as "yes love" regardless of context) but is slightly better at contextual recognition than TA ever will be, since TA simply uses google & other machine translation services, which seem to have plateaued on their ability to learn language a few years ago. if you go with the TA/ITH solution, you'll also want to get the devOSD transparent overlay program as well, which has come a long way since the early days.