In a press release for Splatoon 2's free Global Testfire event, Nintendo has offered more details on the smartphone app needed for online play. The company has previously said that online matchmaking and voice chat will require the app, with a paid online service coming this Fall.
"We're also happy to report that Splatoon 2 will be compatible with Splatoon series amiibo figures and, for the first time in the series, with an upcoming Nintendo Switch app for smart devices that enhances online play," said Nintendo in the press release. "This app will connect to the game and allow players to set play appointments with friends and teammates who have been added to their Nintendo Switch friend list or via their social media accounts."
"It also allows players to match up with those friends directly in the game or voice chat with them via their smart device. For example, during a Private Battle, players can voice chat with all of their connected friends when they divide into teams, but once teams are set, voice chat is switched to communication only between teammates on the same team."
Nintendo says that in order to use the app, players will first need to link their Nintendo Account to the Nintendo Switch. Users will also need a smartphone or tablet capable of voice chat. Nintendo notes that your smartphone data fees will apply to voice chat functionality. The company promises more details at a later date.
Splatoon 2 will be launching on the Nintendo Switch this summer.