From Apple's website: "processing is done by remote servers, it requires a data connection" From Apple employee: "only collects the Siri voice clips in order t

From Apple's website: "processing is done by remote servers, it requires a data connection" From Apple employee: "only collects the Siri voice clips in order to improve Siri itself" Which is basically what Google says. EDIT: both companies have promised "off-line" processing, whatever that means, but I don't know if any already does that. Note that off-line processing does NOT mean they won't store your voice clips on their servers.