Which dictionary app was the first to introduce 'word of the day' push notifications, revolutionizing vocabulary learning through mobile devices?

Digital dictionaries have transformed how we interact with language. While printed dictionaries were the standard reference for centuries, the transition to digital formats brought significant innovations in accessibility, functionality, and user experience. This poll explores a milestone in dictionary product development that changed how millions access language resources. Test your knowledge of this linguistic product evolution!

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Merriam-Webster Dictionary App (2008)
Oxford Dictionary App (2010)
Dictionary.com App (2011)
Cambridge Dictionary App (2009)