Download
Why this matters?
Sunday Letter & Timeline
Problem Statement
Built to create anticipation and meaning over time.
Users lack a clear sense of progress and reward throughout
the week, making moment creation feel low-value and
reducing motivation to consistently engage before the
Sunday recap.
Introducing a weekly timeline that builds toward a Sunday
reveal leverages the goal-gradient effect — users increase
effort as they feel closer to a reward.
Research
Desired Emotional State:
Users feel a growing sense of anticipation and progress throughout the week, culminating in a
rewarding and meaningful Sunday reflection that reinforces the value of capturing their
moments.
"My life is building into something meaningful, and I get to see it."
Anticipation → Progress → Payoff → Meaning → Repeat
The goal of this feature is to push the narrative of:
Evidence
uses a virtual pet that grows and evolves based on the user’s daily actions. Each completed tasks
contributes to it's development, creating a visible sense of progress over time.
Finch
Users are not just checking off tasks
They are working toward something meaningful (their pet’s growth)
Progress is visible, continuous, and accumulative
When users can see progress building toward a meaningful outcome, engagement shifts from obligation → desire.
Users are more likely to:
Stay consistent
Feel emotionally invested
Anticipate future rewards
Timeline
Sunday Reveal
Putting it together
Core Design Decisions
Visualize the week as a single, continuous journey
Designed the timeline to show the entire week at once, framing each day as part of a larger buildup
Make progress instantly visible
Used a glanceable, non-scroll structure so users can immediately understand how much of the week they’ve completed.Recallia themed
Following Recallia's growth theme, the nature design pushes the narrative that we are a real companyAnchor the experience toward Sunday
Structured the timeline to naturally lead toward a clear endpoint
If you're feeling fancy open
the menu to add tags to keep
moments organized
I designed the timeline to build anticipation and visible progress throughout the week
turning moment creation from a passive habit into an experience users actively look forward to, with a
clear payoff at the end.
UX Flow
UX Flow
A note explaining what
the timeline does
Directions can be accessed
at any point
As the week goes on
the vine will grow
The flower jumps to the next
branch which is where the
next moment will grow
Complete!
Each night at midnight, our lightweight integrated AI selects a key moment from the user’s day and
updates the timeline, visually growing the vine to reflect weekly progress.
This passive system builds structure and anticipation throughout the week. On Sunday at 5PM, these
moments are compiled into a personalized recap letter, delivering a meaningful end-of-week reflection.
I want the user to say:
This week meant something—and I’m glad I captured it
The Sunday reveal was designed to feel like a meaningful payoff. Transforming a week of small and often
overlooked moments into something cohesive and valuable.
At the moment of reveal, users should feel a sense of anticipation turning into reward. Opening the
letter should feel intentional and slightly ceremonial, not automatic.
As they read through their recap, users should feel:
Accomplished — “I actually showed up this week”
Surprised — “I did more than I thought”
Validated — “These small moments mattered”
The Sunday reveal transforms a week of small moments into a
single, meaningful reflection. By turning the recap into an
interactive experience, the letter feels earned encouraging
users to pause, reflect, and recognize the value in what they
captured.
The goal of this was to be as intimate as possible, we want users
to see through themselves and really reflect deeply
The timeline drives consistent engagement, turning daily moments
into visible progress. Each interaction builds momentum, giving users
a reason to return and continue contributing throughout
the week.
The Sunday reveal delivers the emotional payoff, transforming that
accumulated progress into a meaningful reflection. It validates the
effort users put in and reinforces the value of capturing their moments.
By connecting progression with payoff, Recallia shifts from a passive
journaling tool into a system that builds anticipation, rewards consistency,
and makes each week feel meaningful.
Capture moments
See progress build →
Anticipate the reveal →
Experience reflection and reward →
Repeat the following week →
What I Learned
1. Motivation comes from progress, not features
I initially focused on moment creation as the core experience, but realized that without visible progress or a larger
purpose, users lacked motivation to engage consistently. Designing the timeline taught me that showing users
they are building toward something is more powerful than adding more functionality.
2. Emotional payoff drives retention
The Sunday reveal highlighted that users don’t just need tools—they need moments that feel meaningful. By
creating a clear payoff at the end of the week, the experience shifts from routine logging to something users
look forward to.
3. Small interactions shape behavior
Subtle elements—like the timeline filling or tapping to open the letter—play a major role in how the experience feels.
I learned that micro-interactions can create anticipation, satisfaction, and a sense of reward, even without complex
features.
4. Systems matter more than screens
Rather than designing isolated screens, I had to think in terms of a behavior loop across time. The combination of
daily progress and weekly reflection showed me that strong products are built on connected systems, not individual
UI components.
Thank you for reading my cases study!
Read more