Google Mobile App
Out with the old; in with the new.
It doesn't appear as an update, in the iTunes store, the post date and version number appear unchanged (see the image) — ignore that! Just delete the old one then get the Google Mobile App again from the AppStore. Apple will tell you the update is free since you already bought this App. The packaging is still old, but Now the update appears and the packaging is updated too the app inside is new (version 0.3.142.951) and it does do voice search.