Only the current version so far — new entries appear as the app ships updates.
P-girls電話 【IP電話アプリ】 is a communication app by P-girls公式 with 500+ downloads (about 618 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “This is an IP phone application exclusively for P-girls registrants. After installation, return to the web screen and start it with the "Start waiting for app phone call" button.”
