RomajiKana is able to translate kana, kanji and Rômaji into different languages and back (english, german, italian, russian, spanish, dutch, hungarianm, swedish, french, slovene, japanese).
-Offline!!
-Kana table overview.
-Explicit kana/rômaji search.
-Direct rômaji view, no clicking on language entry first.
-Download only the language you need.
-The app checks for updates on startup, but this can be disabled, so no internet traffic is produced running the app.
-Search while typing.
-Clipboard copy function (long click the text).
-Exact search function.