If anyone is interested, you can build your own adsb receiver for very cheap (under 50$), and you can forward the data to all the platforms - ADSB-exchange, airplanes.live, flightradar, flightaware, etc.
You'll get the business tier plans on the commercial sites for free, and you'll feed the community exchanges.
You'll also be getting the data directly, so they aren't censored, and don't rely on the internet.
yep and you also can get multiple updates per second per plane. I think it tops out at 8 or so which is entirely unnecessary for the radar-style app but you can count on an update between each "scan".
You'll get the business tier plans on the commercial sites for free, and you'll feed the community exchanges.
You'll also be getting the data directly, so they aren't censored, and don't rely on the internet.