Only the current version so far — new entries appear as the app ships updates.
英単語学習アプリ「リピたん」 is an education app by Panecraft, Inc. with 50,000+ downloads (about 53K estimated). Released Dec 21, 2011. Install growth, rank history, SDKs and ad networks.
From the store listing: “We have adopted a mechanism that allows you to start learning with ease in 4 choices and continue full-scale learning without your knowledge.
This is the smartphone (Android) version of the classic free software for Windows "English Word Learning Software P-Study System (PSS)".
Words are attached to high school…”