Only the current version so far — new entries appear as the app ships updates.
競馬収支 - 中央競馬と地方競馬の馬券収支・回収率管理 is a finance app by hikiit with 1,000+ downloads (about 3.1K estimated). +86 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Simply record the betting tickets you've bought. This app automatically compiles your earnings and return rates for both central and local horse racing in easy-to-understand history and graphs. It also supports analysis by racecourse, distance, and betting type.”