The app for
your relationship.
Tandem keeps you close with shared habits, real love letters, a playlist that is only yours, and a private room for movie nights, karaoke, and photo booth strips. Made for two, even when you are oceans apart.
Free for two Works long-distance Installs like an app App stores soon

Staying close takes more
than good intentions.
Love is the easy part. The staying-connected part is where most couples need a little help. Tandem gives the two of you one shared place for it.
Routines drift apart
Good intentions fade. The little daily things you meant to do together quietly slip, and so does the closeness.
Moments get lost
The songs, the photos, the things you said you would do someday end up scattered across five apps and forgotten.
Distance and time zones
Different cities, different clocks. Staying in sync takes effort when "now" for you is the middle of their night.
None of it needs a grand gesture. It needs a shared place to show up.
One app for all the ways you stay close
Habits, streaks, music, memories, letters, lists, movie nights, karaoke, a photo booth, and a game board. Ten things that usually live in ten apps, in one place that belongs to the two of you.
Commitments you keep together
Build daily, weekly, or custom rituals and check them off side by side. Tandem shows who did theirs, so showing up becomes a thing you do for each other.
- Daily, weekly, or pick-your-days cadence
- See both of your progress at a glance
- A gentle nudge when one of you forgets

How you are showing up, together
Every day you both finish stacks into a streak. A monthly heatmap and side-by-side rings turn your effort into something you can actually see and feel proud of.
- Perfect-day streak counter for two
- Monthly heatmap of your consistency
- Weekly rings for each of you

A playlist that is just yours
Drop in songs from YouTube and build the soundtrack of your relationship. Press play on a shared queue, and turn your memories into a slideshow set to your music.
- Add songs by pasting a link
- A shared, reorderable queue
- Plays under your photo slideshow

A wall of the two of you
Upload your favorite photos, add captions, and keep them somewhere that is only yours. Tap into the slideshow for a full-screen montage that keeps the screen awake while you watch.
- Private photo grid for your couple
- Captions on every memory
- Immersive slideshow with your music

Words worth keeping
Write a real letter and send it. Tandem holds it for an hour or two like snail mail, so there is something to look forward to. They keep every one.
- Handwritten-style letters, sealed and sent
- A slow "in transit" delivery delay
- One letter a day, kept forever

Things you will do together
Suggest an idea. When you both tap the heart, it graduates to your shared bucket list. Keep lists for movies, trips, restaurants, and the someday-things you are saving up for.
- Ideas that need both of you to agree
- An auto-built shared bucket list
- Lists for movies, trips, and more

Movie nights that ignore the miles
Open your private room and pick a door: a movie night, a focus session, the photo booth, or karaoke. Cameras on, everything in sync, and when your person is already inside, their door glows so you know to hop in.
- Watch YouTube in sync or share your whole screen
- Focus sessions side by side on a shared timer
- Full-screen mode made for phones
Sing together, get scored
Pick any song and it plays for both of you, karaoke mode on. When the music ends, the machine drums up your score with stage lights, confetti, and the occasional fireworks. Just like videoke night back home, minus the neighbors complaining.
- Any song, searched right inside the room
- A duet queue you build together
- Scores from 70 to 100, fireworks at the top
A photo booth for the two of you
Step into the booth from different cities and pose through the countdown. Both of your faces land on one classic strip, signed and dated, saved to your wall and sent straight to their phone. And in any room, a 3-2-1 snap turns the moment into a story-ready picture.
- Classic strips: one, two, or three shots
- Your names signed at the bottom
- Story snaps in every room, one tap
A Scrabble board that waits for you
Real Scrabble for the two of you, played at your own pace across time zones. Make your move at lunch, they answer before bed. When you are stuck, one lifeline per game finds your best word.
- Full official board, bag, and scoring
- Play a turn whenever, Tandem nudges them
- One lifeline per game when you are stuck
The small moments that close the gap
Tandem was built by a long-distance couple. These are the touches that make different cities and different clocks feel a lot smaller.
Send a heart
Tap once and a burst of hearts floats across their screen in real time. Offline? It waits for them.
Their time, always
A partner clock shows what time it is where they are, sun or moon, so you never wonder if it is too late to text.
A daily love note
Every morning, a hand-picked line for the two of you lands at your own 8am, wherever each of you wakes up.
A little nudge
A soft "don't forget" for the habit they have not checked off yet. Accountability that feels like care.
Two of you, set up in under a minute
Create your space
Sign in and start a private space for the two of you. Name it whatever you call yourselves.
Invite your partner
Share a six-character code or a link. They join in seconds, and it is just the two of you. No one else.
Build your rituals
Add your first habits, drop in a song, write a letter. Tandem grows with your relationship from there.
The free plan stays free, for the two of you
No card, ever. Habits, letters, the watch room, memories, lists, the calendar, Scrabble, and Paint are all included. An optional Pro plan raises the limits and adds six more two-player games.
- Unlimited shared habits & streaks
- Progress dashboard + monthly heatmap
- Your shared playlist, up to 10 songs
- Your photo wall + slideshow, up to 20 photos
- A real love letter every day
- Ideas, bucket list & custom lists
- Hearts, nudges & daily love notes
- Your shared room: movie nights, karaoke & focus sessions, up to 2 hours a day
- Photo booth strips & story snaps
- Async Scrabble, built for two
- Paint together, up to 10 saved paintings
- Time-zone aware, built for distance
Installs to your home screen. Works offline.
Private, and we can show our work
Everyone says their app is secure. Here is what ours actually does, including the part that is uncomfortable to admit.
Locked in the database, not just the app
Every table we have has row level security switched on. A query signed in as another couple cannot return your rows. Postgres enforces that, not our code, so it holds even on the day we ship a bug.
You are the customer, not the inventory
Apps that hold your private life for free usually pay for themselves by mining it. We have no ads business, no analytics product, and no data partners. Pro is how Tandem pays for itself, which is why reading your letters could never make us money.
We are not end-to-end encrypted
Your data is encrypted in transit and at rest, the same standard Instagram, Notion, and Google Photos hold. But we hold the keys to our own database. Every app that can restore your account after you lose your phone is telling you this. Most just do not say it.
Leaving takes one button
Delete your space in Settings and the rows, the photo and letter files, and both sign-in accounts are destroyed. It takes both of you to agree and we hold it for seven days first, so nobody can erase the other in a bad moment.
The companies that touch your data, in full: Supabase stores it, Mailgun sends your email, Vercel serves the app. That is the entire list. Read the privacy policy.
Things couples ask us
Start your Tandem.
A shared place for your habits, your music, your memories, and your words. Free for the two of you.