Case study · Interaction design

Bumble
DeepSync

Turning Shared Priorities Into Conversation

DeepSync is a three-round, gamified experience within existing Bumble chats, designed to help two people explore what matters and turn their answers into conversation.

Design Systems AI-Mediated Interaction Micro-interaction
Context

CMU · Advanced Interaction Design
with Dan Saffer

Role focus

Design systems · Product strategy & design · Micro-interaction

Timeline

Jan–Feb 2026
Iteration · Oct 2026

Team

Independent project

Recorded from an early prototype, so on-screen text still says “3-Day Sprint” and “Day 1”. The current design uses three rounds.

Overview

Low-stakes play.
High-stakes conversations.

A few taps each, built to bring two people back to the same chat.

  1. 1

    Share your prioritiesEach person responds independently.

  2. 2

    Discover common groundShared insights appear once both have answered.

  3. 3

    Bring it back to chatReview an AI-drafted question, edit it, and send when ready.

01Research

The original goal

The class brief aimed to increase premium conversion through proximity alerts, notifying users when a match was within 0.5 km.

My approach

I explored a different path toward that goal: creating more value within existing matches. DeepSync uses three short, gamified rounds to help two people share their priorities and find something to talk about.

A match is only the start. Keeping the conversation going is the hard part.

What public research and company statements suggest about chats after a match. I didn’t run interviews for this project, and none of these sources tests DeepSync.

Patterns I took from these sources

  1. 01

    Every new match restarts the conversation from zero.

  2. 02

    People want deeper talk but wait for the other person to go first.

  3. 03

    Pressure and time limits make chatting feel like a task.

“It can sometimes be burdensome to start a chat every single time.”
Dara Alsulayman, senior product manager at Bumble · TechCrunch, 2024 ↗
“Women started to feel burdened by having to think of what to say.”
Damona Hoffman, dating coach · NPR, 2024 ↗
“Our community is asking for more flexibility, less pressure.”
Whitney Wolfe Herd, Bumble founder and CEO · Fast Company, 2026, after this project ↗
Hinge Gen Z D.A.T.E. Report · 2025

42%of straight Gen Z women think men don't want deep talk early

65%of straight Gen Z men say they do

About 30,000 Hinge users. First dates, not chat. hinge.co ↗

Roca-Cuberes, Gibson & Mora-Rodriguez · 2023

In 157 post-match Tinder chats, personal topics mostly opened up through questions. When one didn't land, people shared first to invite a reply.

Discourse & Communication. DOI ↗

Sources & limits

Later in 2026, after this project, Bumble let anyone message first and extended the reply window from 24 to 72 hours. It cited a 2024 internal survey of 2,267 women users: two-thirds preferred men to message first because it felt less pressured. Fast Company ↗

Hinge's report surveyed about 30,000 users worldwide in 2025. Its question-gap and depth findings are about first dates. hinge.co ↗

Pew Research Center (2020): of U.S. adults who used a dating site or app in the past year, 45% felt more frustrated and 28% more hopeful. pewresearch.org ↗

Quotes come from company staff, a coach, and published reporting, not from users I interviewed. None of these sources tests DeepSync.

Design direction

Low-stakes activities make room for conversations about what matters.

The idea was to make sharing feel approachable, then turn those responses into conversation. If that experience gives people a worthwhile reason to return to the same chat, it could support retention.

02Prototype

Start from chat, share, then compare.

DeepSync runs as three rounds, each centered on one topic. Light game elements shape the shared part, and AI turns it into conversation.

ValuesWhat matters most?
LifestyleHow do you recharge?
ReconnectingWhat helps after tension?

Flow 1 · Exploring a topic together

Initial prototype
Chat list with a DeepSync invite for Lucas
1

Start from chatThe invite sits inside an existing match.

Topic overview card with a start button
2

See the topicsShort, structured prompts.

Drag to rank relationship priorities
3

Rank what mattersDrag to order, in a few taps.

Both people have completed the topic
4

Both completeThe comparison appears once both share.

Between steps 3 and 4, the card shows you’ve finished while the other person hasn’t yet.

Three design decisions

  1. 1

    Keep each step smallA round is a few taps: rank a short list and submit. Taking part stays light enough to do between other things.

  2. 2

    Make shared progress visibleThe progress hexagons show how far you’ve come, and the waiting card shows where the other person is.

  3. 3

    Create the insight togetherThe comparison appears only after both people share, so what comes out of it belongs to both of them.

03Insight to chat

AI turns what both people shared into a question worth asking.

The question, generated from both people's answers, enters the chat box first as an editable draft.

Flow 2 · Back into the conversation

Initial prototype
Insight card after both people answered, with an Ask Lucas button
1

Add a spark to chatTap Ask Lucas to put the suggested question in the message box.

The question sits in the message box as a draft, marked Conversation spark added
2

Review and editIt arrives as a draft, not a sent message.

The question sent in the chat
3

Send when readyNothing goes out until the user sends it.

Why AI here

A structured comparison finds what two people share or where they differ. AI turns that into a specific question they can edit and send in their own words.

04Business exploration

A paid layer for the original conversion goal.

05Heuristic review

What I’d fix before testing.

Proposed, not yet built

I ran the prototype through the open-source design-critique skill ↗ with an AI assistant. Not user evidence, but it pointed to three fixes.

  1. H1 · Visibility

    Show what’s shared

    Before
    Submit Round 1
    After
    Submit Round 1Lucas sees your top 2
  2. H1 + H3 · Status & control

    Make waiting feel safe

    Before
    Waiting for Lucas..
    After
    Waiting for Lucas to finish.Back to chat
  3. UX writing · Responsible

    Invite, don’t push

    Before

    Round 2 ChallengeKeep your streak!

    After

    Round 2 is readyWhenever you’re free

Smaller fixes⋮≡Ask LucasAdd to chatDimensionsTopics

Then, test with people

  1. 01

    Is it clear what’s shared?

    Usability sessions
  2. 02

    Does the prompt lead to a reply from both people?

    Pilot
  3. 03

    Do people come back, unrushed?

    Pilot + follow-ups
06Reflection & next steps

Designing for connection, not completion.

Three rounds create a shared rhythm, but can also introduce pressure. The next challenge is balancing meaningful participation with freedom to engage at your own pace.

Next: Shared priorities in discovery

Could shared priorities help people find meaningful matches before they start chatting? An opt-in concept that highlights common values without compatibility scores.

Concept exploration · Not tested
Concept: DeepSync Profiles listing nearby people who share priorities the user chose to show
Concept: a profile card with date ideas
Closing

A match only matters if the conversation goes somewhere.

DeepSync explores how shared activities can turn early conversations into more meaningful exchanges. Instead of giving people another compatibility score, it creates moments of mutual discovery and brings those insights back into chat.

The bigger lesson for B2C design is that engagement isn’t the same as value. Completing three rounds means little if people don’t continue talking. The next step is to test whether these interactions lead to more reciprocal conversations, without adding pressure to participate.

Appendix · Design system

The DeepSync design system

Rebuilt in Oct 2026 from the original prototype: the colors, components, and states behind the flows above.

Color

Honey#FED03ESelection, progress, your #1
Amber#FDBD26Messages you send
Pollen#FBE783Activity background
Ink#000000Primary actions, insight panel
Fog#E1E1E1Cards on dark
Mist#EFEFEFRows, composer
Paper#FFFFFFChat background
Slate#737373Secondary text

Type

What matters most?

Title · 22 / Semibold

You both ranked Trust #1

Body · 15 / Medium

3 rounds · 3 shared activities

Caption · 12 / Regular

Components & states

Ranking row

Default, top choice, and while dragging.

2Emotional Support
1Trust
3Adventure

Primary button

One black pill per screen, labeled with what it does.

Start Sprint Add to chat

Progress hexagons

Each round fills in yellow when it’s done. The lock opens after the last one.

Progress hexagons in five states, from not started to unlocked

Insight card

Appears once both people have answered.

Alignment insight

You both ranked Trust #1

You both see Adventure as crucial

Conversation spark

The AI question lands in the composer as an editable draft.

Conversation spark added

What makes someone feel trustworthy to you?

Messages & reminder

Received, sent, and the round reminder (updated copy).

Hey! How are you? Let’s get to know each other better :)
What makes someone feel trustworthy to you?

Round 2 is readyPick it up whenever you’re free.

Principles

  1. One black action per screen. The next step is never ambiguous.
  2. Yellow marks progress and your choices. Your #1, filled rounds, and the messages you send.
  3. AI arrives as a draft. Marked with ✦, editable, never sent automatically.