What is the name of the Nintendo Switch’s first-party voice-chat smartphone application?

The Nintendo Switch Online app is Nintendo’s first-party smartphone application for voice chat and related online features.

Nintendo released the app for iOS and Android in 2017, alongside the company’s expansion of paid online services for Switch. In supported games, users can form voice-chat sessions through the smartphone app rather than through a headset connected directly to the console.

The app also provides game-specific services. For example, Splatoon 2 used it for SplatNet features, including statistics and match information. Nintendo has gradually adjusted the app’s functions as Switch software and online services changed.

The application is separate from Nintendo eShop, which is the digital storefront on Switch, and from older Nintendo Network services. The name “Nintendo Switch Online” describes both the subscription service and the mobile app associated with it.