Only the current version so far — new entries appear as the app ships updates.
経路運賃営業キロ計算アプリFarert is a travel & local app by sutezo with 10,000+ downloads (about 26K estimated). +58 installs in the last 7 days. Released Apr 16, 2019. Install growth, rank history, SDKs and ad networks.
From the store listing: “Calculate the fare amount and operating kilometers of complex routes on the JR Group route”