Turning a peer-reviewed video library into an adaptive AI coach.

JoVE is trusted by universities and researchers for its peer-reviewed science videos. Entering the B2C space meant starting fresh — a library on its own doesn't teach anyone. I designed JoVE's first B2C product as an AI coach that answers questions instantly and guides learners through bite-sized micro-courses with quizzes, progress tracking, and certificates. A learner can start with a single doubt and finish with a certificate without ever browsing.

A library gives you content. It doesn't guide you. Learners need something that feels like a coach — answers instantly, walks them through step by step, and keeps the motivation alive. The wrinkle is that learners arrive with two very different intents.

Doubt-first. Just want a quick answer and to move on

Structured. Want a guided course and a certificate at the end

User interviews surfaced three frustrations on the existing experience: endless browsing with no clear next step, no sense of achievement after a video, and no signal for what to watch next. A competitive scan across Khan Academy, Coursera, Skillshare, and Udacity confirmed three things actually drive engagement at scale — progression, quizzes, and certificates.

I designed the end-to-end adaptive learning product across web and mobile, owning the system from research through ship-ready specs.

• Mapped both learner intents and the path between them
• Designed the chat-as-coach pattern that became the product's spine
• Built the structured micro-course flow with embedded quizzes and certificates
• Designed the progress system. Rings, sticky bars, and copy that nudges without nagging
• Shipped a mobile experience that mirrors desktop without diluting it
• Built the visual system. Illustrations, icons, type, and a supportive tone of voice

Early on I kept asking the same question. How does one product serve a doubt-first learner and a structured learner without splitting into two? Two separate modes felt logical at first — and they were the first thing I threw away. The cleaner answer was a single adaptive journey.

• Ask a question → short video → quick quiz → nudge into a related micro-course → certificate
• The principle. Don't force a choice. Let the experience surface the next step naturally
• In beta, 42% of doubt-first learners continued into a micro-course off the back of that flow

JoVE Coach is six tightly-coupled building blocks.

• Chat as the coach. Conversational, action-oriented, context-aware. Drove 35% longer sessions vs the video-only experience
• Structured micro-courses. Bite-sized videos, embedded quizzes, and a final certificate quiz. 3x more certificates earned vs JoVE's previous baseline
• Quizzes after concepts. Turn passive watching into active recall and prep for the cert
• Visible progress. Rings, sticky bars, and microcopy like 'concepts done, certificate in sight'. 22% lift in completions
• Nudges at the right moment. Only surfaced after related content, not in the middle of a flow. 18% fewer drop-offs
• Moments of delight. Confetti and milestone overlays at the right beats. Learners who hit one were 1.5x more likely to continue
• A design system with playful illustrations, a unified icon set, simplified typography with generous whitespace, and a supportive tone — built so the product feels human, not academic