Build free marketing products to grow your business and build a relationship with your customer. For example, you can build graders, calculators, quizzes, recommendations, or AR apps. Things like Hubspot's free marketing grader, Moz's site analyzer, VenturePact's mobile app cost calculator, new york times' dialect quiz, Ikea's AR app, L'Oreal's AR app, and Nike's fitness apps. All of these examples are free tools that help drive engagement with your brand, build an audience, and generate leads for your core business.
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