A:AnswerYes. Although, I did not subscribe to the service, it seems well worth it. It also depends on how much printing you'll be doing since the single cartridges can get expensive.
A:AnswerI would assume it can. I have not tried. It does not have a scan button on the printer itself. the scanning is done through software on the driver from t he PC. I am guessing you can just choose jpg instead of pdf
A:AnswerThe printer also has WiFi Direct so you can connect to it even if you do not have WiFi available. I am not sure if an iPhone supports OTG printing. I know that Android phones do.