Made for music. Made for meeting.

Meet through music.

Cùng Hát helps people in Vietnam find others who share their music taste and meet offline to sing together.

Built around friendship, music and real-world connection — not dating.

Explore Cùng HátView on GitHub
A shared song is a start

01 / The idea

Music already gives us
something in common.

Cùng Hát turns shared music taste into a reason
to meet, talk and sing together.

Music-first discovery

Find people through genres, artists and songs you already love.

Small-group Kèo

Create or join casual karaoke outings with a few people.

Safer offline meetups

Privacy-aware location, confirmation flows, reporting, plan sharing and check-ins.

02 / From a song to a plan

Good company starts
with common ground.

Your music is the introduction. The rest happens together.

  1. 01

    Pick your music

    Genres. Artists.
    Your signature songs.

  2. 02

    Discover people

    Find a little
    shared musical ground.

  3. 03

    Match or join a Kèo

    One person.
    Or a small group.

  4. 04

    Chat & make a plan

    Pick a time.
    Find a place.

  5. 05

    Meet & sing

    Take the connection
    into the real world.

Gu nhạc chung.Something to share.

03 / Đôi — One to one

One person.
Shared songs.
A reason to
say hello.

Discover someone whose music taste feels familiar. Start with the genres, artists and signature songs you have in common, then chat and plan to sing together.

Music first. Friendship in mind.
GU NHẠC CỦA BẠN

A little of you.
A lot to talk about.

01
GENRES
V-popBalladIndie
02
ARTISTS

The voices you keep coming back to.

03
SIGNATURE SONGS / BÀI TỦ

The songs you know by heart.

Something in common. Something to sing.
Music-profile concept · based on existing product fields
Cùng Hát development screen showing the Kèo board with sample karaoke outings, genre tags, distance bands and a create-outing button.
Actual development build · sample data
Interface in Vietnamese

04 / Kèo — A few good voices

More people.
More songs.
One plan.

Create a casual karaoke outing or request to join a small group. Find shared tastes, confirm together and turn “we should go singing” into an actual plan.

  • 01 Create or request to join
  • 02 Confirm with the group
  • 03 Chat and choose a venue

05 / A considered connection

Meeting new people
should still feel considered.

Safety and privacy are part of the product we’re building.

Phone verification

A phone verification step when getting started.

Privacy-preserving location

Distance bands, without exposing precise personal coordinates.

Block & report

Controls for unwanted contact and concerning behaviour.

Group confirmation

A shared plan that the group confirms together.

Share your plan

Let someone you trust know about your meetup.

Check in when you arrive

Keep your group in the loop when you get there.

06 / Behind the product

Built deliberately.

A thoughtful product, from the first screen to the systems behind it.

FlutterThe app
SupabaseThe backend
PostgreSQLThe data
PostGISLocation
RealtimeConversations
ClaudeEngineering workflow

Made with care

A useful collaborator.
A deliberate process.

Claude is part of our engineering workflow for architecture, implementation, debugging, testing and product iteration.

We are also exploring responsible Claude API integrations for moderation and context-aware social experiences.

07 / Work in progress

Pre-launch MVP

Currently building.

Cùng Hát is a pre-launch MVP being actively
developed for the Vietnamese market.

For adults 18+ · Music, friendship and shared experiences

Hẹn nhau một bài hát.

Let’s make it easier to find
someone to sing with.

View the project