When Duolingo launched in 2012, what unique product strategy did they implement that disrupted traditional language learning platforms?

Duolingo revolutionized language learning with its gamified approach and innovative product strategies. The company has transformed how people engage with language learning through its unique mix of technology, psychology, and linguistics. This poll tests your knowledge of Duolingo's product launch strategy that helped it become one of the most successful language learning platforms globally.

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The gamification system with streaks, points, and leaderboards that creates habit-forming behavior
A freemium model where the entire core curriculum was available for free, supported by ads and optional subscriptions
Using advanced AI to personalize learning paths based on user performance and retention patterns
Creating the iconic owl mascot (Duo) that became central to their brand identity and marketing