Unfortunately the data that other apps use for this is copyrighted (just with obfuscated origins so people don't care). I forgot that Wiktionary has pitch accent data though, thanks. I plan to use Wiktionary to expand this app to many more language pairs as well.

If you go to the "External" resources tab on a lookup, I did integrate OJAD already, but it would be better to have this data alongside the JMDict dictionary too.