Siri and Dictation. The Siri and Dictation features of the iOS Software may not be available in
all languages or regions and features may vary by region. If your iOS Device supports Siri and
Dictation, these features may allow you to make requests, give commands and dictate text to
your device using your voice. When you use Siri or Dictation, the things you say will be recorded
and sent to Apple in order to convert what you say into text and to process your requests. Your
device will also send Apple other information, such as your first name and nickname; the names,
nicknames, and relationship with you (e.g., “my dad”) of your address book contacts; and song
names in your collection (collectively, your “User Data”). All of this data is used to help Siri and
Dictation understand you better and recognize what you say. It is not linked to other data that
Apple may have from your use of other Apple services.
By using Siri or Dictation, you agree
and consent to Apple’s and its subsidiaries’ and agents’ transmission, collection,
maintenance, processing, and use of this information, including your voice input and User
Data, to provide and improve Siri, Dictation, and dictation functionality in other Apple
products and services.
Source:
https://www.apple.com/legal/sla/docs/ios6.pdf#mn_p