[kenbaylor]

Once Google Fi is activated, it can work on iPhones and other devices. I use it all the time when traveling. Data-only SIM cards are free on Fi, (with no monthly recurring fee) so you can roam on multiple devices and only pay a very low fee ($10/gig) for what you use.

[greggman]

?? I thought Project FI had a min $20 a month basic rate. Looking at the site it certainly looks that way. Is there a way to have a Project FI account and no monthly fee if not used?

[tintor]

Yes, you can suspend it for up to 3 months: https://support.google.com/fi/answer/6079346?hl=en