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David Kim

David Kim

Retention & Engagement Specialist

David doubled Day-30 retention at Duolingo through gamification and habit-forming design. He combines behavioral psychology with data-driven experimentation to create products people can't stop using.

retentiongamificationhabit formationbehavioral design
5
Courses
43,236
Students
★ 4.5
Avg Rating

Courses by David Kim

Retention Fundamentals
retention beginner

Retention Fundamentals

Retention is the foundation of sustainable growth. Learn to measure, diagnose, and improve how users come back.

David Kim 27 min
★ 4.9 · 7,212
Habit-Forming Product Design
retention intermediate

Habit-Forming Product Design

Apply behavioral science to create products users love and return to. Based on the Hook Model and modern behavioral design.

David Kim 24 min
★ 4.3 · 12,843
Gamification That Works
retention intermediate

Gamification That Works

Move beyond superficial points and badges. Learn gamification systems that genuinely improve engagement and learning outcomes.

David Kim 22 min
★ 4.8 · 8,346
Re-Engagement Campaigns
retention beginner

Re-Engagement Campaigns

Win back churned users and reactivate dormant ones. Data-driven strategies for email, push, and in-app re-engagement.

David Kim 19 min
★ 4.2 · 4,739
Notification Strategy & Optimization
retention intermediate

Notification Strategy & Optimization

Send the right message to the right person at the right time. Data-driven approaches to push, email, and in-app notifications.

David Kim 19 min
★ 4.2 · 10,096