Only the current version so far — new entries appear as the app ships updates.
영작연습과 영어회화, 마이코엔 is an education app by Statext LLC with 1,000+ downloads (about 1.5K estimated). +2 installs in the last 7 days. Rated 5.0 from 36 ratings. Released Aug 23, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “myKoEn helps you write better English.”