Based on input in this forum, I plan to use minimal iPhone data. I have CityMaps2Go to navigate and I plan to use free or cheap local WIFI when needed. There seem to be several providers. Should I sign up for all of them? Are any particularly useful or not? Any help appreciated.
O2. Free but they spam you with offers.
Virgin Media. 15 GBP per month. Focused on tube stations.
Sky WIFI or The Cloud. (Are they the same thing?)
Thanks!