Here is some data from a gateway near Apeldoorn. The gateway is in a “quiet” rural area and used on average 5,2 MB data per day while connected to 2 networks (TTN and a private server).
The gateway, built with Resin.io and using the multi-packet forwarder, is connected trough a 4G broadband modem to the internet.
The resin.io implementation has [RESIN_SUPERVISOR_LOG_CONTROL] disabled to prevent logs from being sent to balena