That page seems to indicate that the subscription is to a real-time data feed, rather than the software itself—am I mistaken?
That page seems to indicate that the subscription is to a real-time data feed, rather than the software itself—am I mistaken?
Unless you're paying to turn on access to purely a third party feed (which would be odd to me) there's some server side code taking those feeds and that the app is calling. Is that server code MIT licensed?
An open source interface to a proprietary backend isn't really fully auditable.