Samuel Gibbs: Google launches WhatsApp competitor Allo – with Google Assistant. In: The Guardian. 21. September 2016 (theguardian.com [abgerufen am 21. September 2016]).
Samuel Gibbs: Google launches WhatsApp competitor Allo – with Google Assistant. In: The Guardian. 21. September 2016, ISSN0261-3077 (theguardian.com [abgerufen am 6. November 2016]).
Andy Greenberg: With Allo and Duo, Google Finally Encrypts Conversations End-to-End. In: WIRED. (wired.com [abgerufen am 6. November 2016]).
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Samuel Gibbs: Google launches WhatsApp competitor Allo – with Google Assistant. In: The Guardian. 21. September 2016, ISSN0261-3077 (theguardian.com [abgerufen am 6. November 2016]).