SwimHarbor - 水泳の練習と記録 is a sports app by evenrain Inc. with 100+ downloads (about 211 estimated). +1 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “A training menu and time management tool for swimmers. Everything from creating training menus and tracking personal bests to setting goals and communicating with your team—all in one place.”