Wakaru version 2.0.0 is available on the app store.
The main new feature is the support of PDF documents.
Wakaru can read PDF documents and the dictionary search is available as an in-app purchase for only $1.99.
The development of the PDF reader took almost 6 months.
FEATURES of PDF READER
Selection and look-up of Japanese text
Support of retina display
Vertical text orientation is not supported (yet).