Ask HN: Where do iOS/Android Dictionary Apps get their Data?

[wazoshin]

There are plentiful of Dictionary apps on iOS/Android, to name a few :- https://play.google.com/store/apps/details?id=fr.nghs.android.dictionnaires&hl=en https://play.google.com/store/apps/details?id=com.bravolol.bravolang.englishchinesecdictionary&feature=search_result https://play.google.com/store/apps/details?id=com.movinapp.dict.enes.free&feature=search_result https://play.google.com/store/apps/details?id=com.sedevelop.dict.enesen.free&feature=search_result

Where do they get the dictionary data to make those apps? Do they license them from somewhere or there's an open available data?

[byoung2]

http://www.wiktionary.org/ Data available under CC-BY SA license

[wazoshin → byoung2]

data needs to be converted to sql/sqlite?