As a current Fi customer, I believe that's correct. But I think this is also aggregated across all devices. So if you use 1KB on 5 devices, I think you only pay $1. There's also a limit of 4 data-only SIMs.

Good to know, thanks! Probably not something I’d want to use for a super low bandwidth application like hourly gps updates but definitely viable for something a little more “active iot”.