Ali Abouelattaさんのイラストまとめ
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Building Lazyweb.com (coming soon). Monetization PM at @duolingo.
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We ran 100's of experiments @ Duolingo in 2022.
These 4 helped were big for retention:
1) Widgets that “come to life”
Our take: Duo gets progressively more frustrated throughout the day if you haven’t done your lesson.
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