Only the current version so far — new entries appear as the app ships updates.
Proself Client for Android is a productivity app by 株式会社ノースグリッド with 1,000+ downloads (about 1.3K estimated). +1 installs in the last 7 days. Released Aug 29, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “Proself Client for Android is the Android Client for online storage building package Proself Inc. North grid”