https://www.polygon.com/2018/9/12/17797220/nintendo-switch-online-launch-date-free-trial-eshop

Nintendo announced the start date for its long-awaited online service: Sept. 18. More details about the Nintendo Switch Online program will come tomorrow, Sept. 13, during the company’s latest Direct presentation.

Although the service offers several subscription tiers, including monthly and yearly, all Switch owners can first try it out free. A one-week trial will launch alongside the service on Sept. 18 and will be accessible through Nintendo Switch eShop.