From App store : The Nintendo Switch Online app is designed to help enhance your online gameplay experience on Nintendo Switch™. With this app, you can check game-specific services (e.g., SplatNet 2 for Splatoon 2), invite friends to play with you via social media, and use voice chat while gaming. From Verge Found this while browsing Nintendos account in Play store .In the Play Store the number of 1★ ratings are nearly around the number of 5★ ratings. Play store Link:https://play.google.com/store/apps/details?id=com.nintendo.znca Verge Link:https://www.theverge.com/2017/7/6/1...ch-online-app-splatoon-2-july-21st-smartphone