Today's Stack app screens: when's your exam, today's stack, and what's your next goal

Quizlet Β· Motivation Design Sprint

Closing the Post‑Exam Retention Cliff

A four-day sprint that turned Quizlet's sharpest retention problem into two tested concepts and one prioritized growth bet

My roleSprint leader, Concept 1 lead and prototyper
Timeline4 days, March 2026
TeamDesign, Research, Product
Built withFigma and Claude Code
OutcomePrioritized onto the growth roadmap

Students cram, then vanish

Quizlet never struggled to get students in the door. Exam panic did that for free. The leak sat one step later in the funnel: usage tracked exam dates, monthly actives were sliding, and whether a student ever came back was close to a coin flip. Nothing in the product gave them a reason to open the app on a day when nothing was due.

EXAM DAY The cliff The drop-off we set out to close WEEKS BEFORE WEEKS AFTER SESSIONS PER USER
50%of college students procrastinate regularly
70%report having poor time management skills
1 in 3name time management as their single biggest challenge

Motivation is the one thread across the whole student lifecycle

A student can be driven by an exam next Tuesday or by a career four years out. We picked motivation as the sprint topic because it is the only lever that reaches every stage of that journey. And the timing matters: Quizlet's core value, active recall, is strongest early, and fades exactly as the biggest questions arrive.

QUIZLET RELEVANCE Active recall Critical thinking & analysis College and career paths Picking a major Job path decisions High School Underclassmen High School Upperclassmen University Freshman University Sophomores University Juniors University Seniors

75% of US college students self-test and 47% space their studying, so the core behavior is real.
But it peaks early, while the decisions that actually shape a student's life land later. One concept had to serve each end.

The Motivation Framework

High agencyI know what to do
Micro goalsAce this exam
Has near-term goals and knows what they need to do
Has a big goal and knows just what to do to get there
Bet 1 Β· Today's StackHas near-term goals, but struggles to get going
Bet 2 Β· Knowledge TreeHas lofty goals, but overwhelmed on the path there
Macro goalsLife purpose
Low agencyI don't know what to do

Where growth and retention were both winnable

Maya, persona portrait

Persona

Maya, "The Parachuter"

19, Psych major, existing Quizlet user. She drops in right before an exam and disappears when the pressure is gone. Already acquired, already converted. Moving her from 2 visits/year β†’ 5 mins/day is the cheapest growth available to us.


4 days, 9 stakeholders, 2 bets

A compressed GV-style sprint with an explicit bar: diverge widely, converge on ideas worth betting on, and design mechanics that turn learning into retentive habits we could measure against core growth metrics. Every idea had to survive a vote, and every survivor had to face a real student by Friday.

DAY 1Understand & SketchLightning talks, the 2×2 framework, and eight-packs of solution sketches
DAY 2Decide & HypothesizeGallery walk, anonymous voting, and converging on two concepts worth betting on
DAY 3Define & StoryboardPersona definition and framing the key moments of each concept
DAY 4Test & LearnHigh-fidelity prototypes in front of real students, in the wild
Sprint team sketching in the room on Day 1 Gallery walk with the team reviewing sketches
Solution sketch: the Q Combinator concept The sprint team working together Solution sketch: the Career Skill Tree concept

Two prototypes, two ends of the spectrum

One concept for the student with an exam on Friday. One for the student wondering what any of this is for.
Both were built, both were tested with real students.

Bet 1 Β· Near term

Today's Stack

Takes a student's goal and exam date and auto-generates a day-by-day plan, breaking the course into five bite-size actions, about five minutes a day, wired into notifications so the loop restarts on its own.

  • Attacks the post-exam cliff directly
  • Replaces one cram session with a daily habit
  • Low agency × micro goals
Hypothesis

If we remove the "what do I do next?" decision by auto-generating a personalized day-by-day plan from a student's goal or deadline, re-entry friction drops and students hold a steady study cadence. Visible progress toward a goal that matters makes that cadence self-reinforcing.

Bet 2 Β· Long term

Knowledge Tree

Maps what a student is studying today onto the subjects, skills and careers it ladders up to, as a growing knowledge graph rather than a list of sets.

  • Builds a reason to return that outlives any exam
  • Connects coursework to subject mastery and career
  • Low agency × macro goals
Hypothesis

If we prove to students that they are gaining real-world skills rather than just passing tests, we drive long-term retention. Focusing on practical utility activates the deepest form of motivation and keeps users past the exam.

From Figma to functional

Prototyped with Claude Code, tested on the street

Day 4 needed more than a click-through. It needed prototypes that could think: plans that recalculate from any exam date, live quizzes, a working AI coach. I fed my Figma designs to Claude Code and turned them into interactive React, 21 screens across 5 flows in an afternoon, with no engineering support. Then we took them into the wild to test with real students.

1 Β· DesignHigh-fidelity flows in Figma, grounded in the Day 3 storyboard.
2 Β· GenerateClaude Code translated them into working React with real logic and real state.
3 Β· TestStudents tapped a living product, not a slideshow, and reacted to it as one.

Bet 1 Β· Near term

"Today's Stack" in the hand

The daily stack in motion
Onboarding: what's your goal?Start with the goal
Onboarding: when's your exam?Work backwards from the exam date
Flashcard activityA daily mix of flashcards
Quick quiz activityQuizzes and recall prompts
Post-exam reflection screenA post-exam reflection
Voice input transcription screenBy text or by voice
We heard you, feedback applied to next stackFeedback retargets the next stack
What's your next goal, Maya?Course over, loop restarts

Try it yourself

The live prototype

The actual prototype we tested:
Pick an exam date and watch the plan recalculate.

Loading interactive prototype…


Bet 2 Β· Long term

"Knowledge Tree" and the bigger picture

The more sophisticated of the two, and the one that got the strongest reaction in the entire study. The animated reveal drew a consistent "woah" from users at every stage, high school through grad school. Motion and visualization did the explaining that copy could not.

It also surfaced its own gap: nobody could see how memorizing terms actually grew the tree. The link between sets and skills has to be earned, not asserted. That is precisely why it became the horizon bet rather than the roadmap one.

User testing in Washington Square Park User testing in the subway

The team divided and conquered, splitting the two prototypes to guerrilla test with students across NYC

I procrastinate a lot, but once I get in the zone, studying isn't that bad. I just need something to make me start.”

- Marcus, Freshman, NYU

It's cool seeing the path actually mapped out. Usually you're just taking classes because you have to, but this makes it feel like they're leading somewhere.”

- Sofia, Junior, NYU


What students told us

Starting is harder than studyingThe cost is not the five minutes of work, it is deciding what to do. Externalize the when and the what, and students engage.
Exams trigger; purpose alone does notEven students with big life goals study because of deadlines. Long-term meaning motivates, but near-term pressure activates.
Visuals connect the dotsAnimation and visualization landed harder than any copy we wrote. Design was the argument, not the decoration.

Impact: 1 bet on the roadmap, 1 on the horizon

The sprint turned "can motivation move retention" into a ranked portfolio a team could actually run, covering both the next quarter and the next year.

PrioritizedToday's Stack was picked up onto the Growth roadmap as the near-term bet against the post-exam cliff.
SizedData Science began opportunity sizing the problem space, so the bet carries a number and not just a story.
QueuedKnowledge Tree's visualization mechanic was kept as the future bet, to be tested on its own merits.

From findings to growth experiments

Each finding became an if/then hypothesis paired with a test small enough to run before committing engineering time.

Finding
Behavioral Hypothesis
Validation Experiment
Starting vs. studying
Deciding how to start costs too much.
If we tell the user when and how often to study at the start of a session, then they will engage more frequently, because the cost of starting has been externalized.
Time-based exam notifications: study X minutes a day across Y days.
Size (granularity)
Large tasks trigger avoidance.
If the task is reduced to an approachable unit of work, then students will bypass their internal resistance and act.
Break material into a five minute daily commitment, and nudge one activity a day.
Ease (complexity)
Not knowing the steps leads to stalling.
If we provide a clear procedural map, then students reach execution faster, because they are not spending energy on planning.
Notifications that route users straight back into recently studied content.
Long-term vs. micro-wins
The mountain feels too big, the valley too far.
If we map micro-actions to macro-objectives through a persistent visualization, then motivation holds, because small tasks add up to something visible.
Test the Knowledge Tree visualization on its own, separate from the full concept.

What I took from it

Four focused days gave us space to look beyond the next growth experiment and tackle a harder question: What actually motivates students to keep coming back? We reframed that ambiguity into a shared Motivation Framework, pushed beyond short-term growth tactics, and rapidly prototyped new possibilities to test with real students.

By the end of the sprint, we had turned a fuzzy strategic problem into tangible user evidence and promising product directions that helped shape the longer-term Growth roadmap around retention.