KOKEN -体力測定アプリ- is a health & fitness app by SEIKO IT SOLUTION CO.,LTD with 1,000+ downloads (about 1.4K estimated). +6 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “Have you been falling down more easily lately? Let's measure your physical strength so that you can't fall!”