The private couple app where your story becomes a universe.

Hapipy keeps your love letters, photos and milestones in one place only the two of you can open — and turns them into a galaxy you can wander through together.

Write a letter first

Free to start · Invite-only · No feed, no strangers

The idea

Your relationship is scattered across a dozen apps.

The photographs are lost in a camera roll of nine thousand. The words are somewhere in a chat thread neither of you can scroll back through. The day you met is a fact you both know and can never find. Hapipy is one private place that holds all of it — and gives it a shape you can visit.

  • Nine thousand photos in a camera rollOne gallery that is only the two of you
  • Words that scroll away in a chat threadLetters that are kept, and re-read
  • Dates you both half-rememberA timeline that counts the days for you

Inside your universe

Built to be lived in, not just filled in.

Letters that arrive sealed.

Write a letter, seal it, and send it across the room or across an ocean. It waits in an envelope until they open it — the wax breaks, the paper unfolds, and for a moment nothing about it feels like a text message.

Write one now, without an account

A galaxy that remembers where everything is.

Every photo, letter and milestone becomes a star with a fixed place — the same sky for both of you, on every device. Look at the whole of it and you can see the shape of a year. Move closer and you are back inside one afternoon.

Small things, left where they will be found.

A note on the wall for a hard morning. A song set as the background of your entire world. A count of the days until you are in the same room again. The parts of a relationship that never fit into a photo album.

And everything else in the box

  • Photo gallery

    Every picture, private and in one place.

  • Day counter

    How long it has been. How long until.

  • Shared song

    Your soundtrack, playing across the world you built.

  • Proposal creator

    Build the question before you ask it.

  • Hidden memories

    Some things are for later, or for one of you.

  • Date planner

    The next one, agreed on and written down.

Also inside Hapipy

A real invitation website, not a graphic in a group chat.

Your world is for the two of you. Hapipy also builds the invitation you send to everyone else — a designed page at its own link, for weddings, birthdays, engagements and anything worth gathering for. Free, and no world required to make one.

  • Art-directed templates

    Not one layout with your colours in it — genuinely different designs, each with its own palettes.

  • RSVP, no accounts

    Guests reply on the page itself. Nobody signs up to say yes.

  • Arabic and English

    Set right-to-left properly, or carry both languages at once.

No sign-up required

Try the best part first.

Both of these work right now, in this browser, with no account — yours or theirs. Send one and see what the rest of it feels like.

Letter

Write a love letter

Compose it, seal it, and send a link. It opens with the envelope animation, wherever they are.

Proposal

Build a proposal

Write the question, choose the celebration, and keep the “no” button just out of reach. Then send it as a link.

Getting started

One minute to open your world.

  1. 01

    Claim your space

    Name your world and set the day it started. It takes about twenty seconds.

  2. 02

    Invite your partner

    Give them your invite code and world password. Nobody gets in without both.

  3. 03

    Put the first star in the sky

    A letter, a photo, a note left where they will find it tomorrow.

Why it stays private

Private is the feature.

  • Invite-only

    A world is set up for two. Joining it takes your invite code and your world password, and you decide who gets them.

  • No feed, no followers

    Nothing to scroll, nobody to perform for, no strangers to discover you.

  • Yours to keep

    We do not sell your data, there are no ads inside your world, and nothing you write is public unless you choose to share it.

Before you start

Questions couples ask.

What is Hapipy?

Hapipy is a private couple app: one shared space where two people keep their photos, love letters, notes and milestones, and see them laid out as a galaxy of memories rather than an endless list.

Is Hapipy free?

Yes. Hapipy is currently free: there are no paid plans, and no card is asked for at any point.

Who can see what we put in it?

The members of your world — by default, the two of you. Joining takes both your invite code and your world password. There is no public feed, no follower list and no way for anyone to browse their way in. The exceptions are things you deliberately share by link: a letter, a proposal or an invitation. Hapipy’s administrator has technical access for support and safety, as our Privacy & safety page explains.

Does it work for long-distance couples?

It is arguably better for them. Letters arrive sealed and wait to be opened, the day counter runs to the next time you are in the same room, and both of you see the same memory galaxy no matter which side of the world you open it from.

Can I try it before making an account?

Yes. You can write a full love letter or build an interactive proposal without signing up, and share either one by link. Whoever opens it does not need an account either.

What makes it different from a shared photo album?

An album stores things. Hapipy is built to be visited: letters open with a wax seal, memories take a fixed place in a night sky you can both navigate, and the small things — a note, a song, a countdown — sit in the world alongside the photographs.

Does Hapipy also make wedding and event invitations?

Yes. Alongside your private world, Hapipy builds real invitation web pages for weddings, birthdays, engagements and other events — art-directed templates, a working RSVP, and one link to send. It is a separate, free tool at hapipy.com/invitations and needs no couple world to use.

Do wedding invitation guests need a Hapipy account?

No. An invitation is a public page at its own link. Anyone who opens it can read every detail and reply with no account, no app and no sign-in.

Somewhere to put the last ten years.
And every year after them.

Free · Invite-only · Yours to keep