Furigana Reader reads words on the phone with an adaptation of JMdict, the Japanese-English dictionary of the Electronic Dictionary Research and Development Group (EDRDG), used in conformance with the Group's licence.
The adapted data is shared under the Creative Commons Attribution-ShareAlike 4.0 licence, as JMdict's licence requires.
Download the adapted data (zip) - the LICENSE.txt inside describes the source release and every change made.