Likely they were referring to the "Spectrum is offering more channels for $45/month" bit.

Not an expert since I don't really watch cable TV, but it seems like Spectrum's app is available for iPhone too - so not just available from home.

https://apps.apple.com/us/app/spectrum-tv/id420455839

Sort of.

"you can enjoy up to 250 live TV channels and up to 30,000 On Demand TV shows and movies when you're connected to your Spectrum Internet WiFi network at home. Plus, when you're on the go, enjoy up to 150 live channels and up to 20,000 On Demand titles anywhere you have an internet connection"

TY for reading the fine print, sort of sounds right.