This app is pointless. The only advantage over the hyperdia website would be voice search but that is too hit and miss to be of any use. I thought It was because of my non-native Japanese pronounciation/intonation but when I asked a Japanese colleague to try they also got bad results. Surely Hitachi know this, so why even release it? I cant believe anyone would pay money for this software as it is. They should either just make a mobile page of the website, or make a simple, free offline app with the same function as the website.
Kanagawaben about HYPERDIA by VOICE, v1.2.1