For those of you who are wondering where the App Directory entry for Talking Scientific Calculator went (particularly the people who posted comments on it!), I have removed it.
It was removed because it was posted by the developer. The value of this site is in hearing the impartial views of fellow VoiceOver users. Clearly a developer is never going to post impartial information on the accessibility of their apps. I should point out, though, that developers are more than welcome to respond to any comments that are made about the accessibility of their apps.
Hopefully, somebody will be able to post information on the actual accessibility of this app.