otta(オッタ)- 持ち歩ける、親子の絆。 is a lifestyle app by Otta Inc. with 10,000+ downloads (about 38K estimated). +131 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “A smart watching service that connects "safety" of children and "safety" of parents”