On top of the Virtual Ticket, Blizzard is also offering a BlizzCon Mobile App for both iOS and Android devices. Unlike the Virtual Ticket, the BlizzCon Mobile App is free for everyone to download and use.
The BlizzCon 2018 Virtual Ticket does have a cost associated with it and that cost is $49.99 (USD).
BlizzCon 2018 Virtual Ticket Features
Never Miss a Moment: The opening ceremony
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Never Miss a Moment: The opening ceremony