In iOS 10 Apple has opened its digital assistant Siri via Third Party App. This facility is only for Messenger, Mobile Payment and some other applications like this.

These applications also include WhatsApp. If you see the latest WhatsApp version of iOS, you will find permission granted to digital assistance Siri for call and message.

iOS users can say “Hey Siri, Call Taylor Swift with WhatsApp” to connect via WhatsApp with Siri. You can also receive message and send message via Siri.