In a new report by Sensor Tower, they look at how many Switch owners have downloaded the Nintendo Switch Online App.
In the first 10 days following the app’s launch, Sensor Tower Store Intelligence estimates that Nintendo Switch Online has been installed approximately 780.000 times worldwide, or by about 17 percent of all Switch owners. The installs break down fairly evenly between the App Store and Google Play, at approximately 400,00 and 380,00, respectively.
This number has potential to grow if Nintendo has more games that use this app. The only game that currently requires use of this app is Splatoon 2.