A long distance relationship app built by a couple in two timezones
The best long distance relationship app is the one that stops assuming you are both awake at the same hour. Tandem is a free app for two: it shows your partner's local time on your home screen, evaluates each person's habits against their own day instead of a shared one, delivers the daily love note at each person's own 8am, and keeps letters, movie nights, and games working without either of you staying up late. Plenty of people land here searching apps for couples long distance, and most of what comes up is a same-city app with a clock widget bolted on after launch. Tandem started with the distance first, and everything else was built around that.
The timezone problem nobody solves
Open the Today tab and the first thing you see, before your own habits, is a small card: your partner's exact local time, their timezone, and a line telling you if it is already tomorrow where they are. It is a small piece of information most apps never bother to surface, and it changes how you read the rest of the screen. A habit unchecked at 11pm your time might already be done on their end, because their day started while yours was ending.
Habits are evaluated against each partner's own calendar day, not one shared cutoff. A habit due today for you does not reset at your midnight if your partner still has hours left in their own day. The same logic runs the daily love saying: it is delivered at 8am in each partner's own timezone, so you both open the app to the same line without one of you reading it on a lunch break twelve hours after the other already went to bed.
What you actually do together
| Feature | What it is for | Works asynchronously |
|---|---|---|
| Habits | Shared streaks and daily commitments | Yes, each partner checks in on their own schedule |
| Letters | Cursive notes that arrive on a delay, for saying something a text would flatten | Yes, write whenever, it waits to arrive |
| Watch room | Synced YouTube, video chat, and screen share for a shared movie night | No, needs both partners online at once |
| Playlist | A shared queue of songs you are both adding to | Yes, add a song anytime |
| Memories | A shared photo album with captions | Yes, upload whenever |
| Lists | Shared to-dos and a two-approval bucket list | Yes, add and check off independently |
| Calendar | Shared events and reminders, timezone aware | Yes, set once, each partner sees it converted to their own time |
| Games | Eight two-player games, five of them turn based | Depends, see the games section below |
Letters that take a while to arrive
A letter written in Tandem does not land in your partner's inbox the second you hit send. It arrives somewhere between one and three hours later, the way a real letter used to make you wait for the mail truck. That delay is not a slow server, it is the point. It turns a letter back into something you compose rather than something you fire off mid-argument, and it means your partner opens it later, as its own moment, instead of it landing in the middle of whatever they were doing when you typed it.
One letter per person per day on the free plan keeps it a daily habit instead of a chat thread with a fancier font.
Movie nights that stay in sync
The watch room syncs a YouTube video for both of you, adds a video chat window so you can see each other's reactions, and includes screen sharing straight from a desktop browser. Play, pause, and seek on one side and it moves on the other, so nobody spends the night six seconds ahead.
One honest limitation, worth saying plainly: screen sharing a DRM-protected service like Netflix shows the other person a black rectangle where the video should be. That is the streaming service's own output protection, the same thing that blacks out a screen recording, and no couples app, ours included, can get around it. Anything on YouTube plays fine through the synced player. For a DRM-protected platform, screen share still works for browsing together, picking something, reading the menu, but once playback starts on the shared screen, expect black.
Games you can play across a twelve-hour gap
Five of Tandem's eight two-player games, Scrabble, Chess, Connect 4, Checkers, and Battleship, are turn based: they hold their exact position until the other person opens the app, so a twelve-hour gap does not break anything mid-game. The other three, Quiz, Doodle, and Paint, need you both online at the same time.
Here is the plain version for anyone on the free plan: only two games are free, Scrabble and Paint, and of those two, only Scrabble is turn based. A free-plan long-distance couple gets exactly one game that survives a real timezone gap. Paint is free too, but it needs you both online at once, so it plays more like a weekend activity than something you pick up between timezones. The other four turn-based games, Chess, Connect 4, Checkers, and Battleship, are part of Tandem Pro. See the full breakdown of which games hold up across a distance.
Who built it
I'm Neil, and I built Tandem because I live in New Jersey and my wife lives in Manila, a twelve hour difference most days. We tried the couples apps that existed before this one and kept running into the same shape of failure: features built for two people in the same city, with a long-distance mode bolted on after, usually just a clock widget. I wanted the clock widget to be the whole design, not a feature bolted on top of it: habits that respect her day even when it is not my day, a letter that can sit for an hour without anyone worrying it got lost, a movie night that does not require either of us to be awake at 2am. Tandem is the app I wished existed while we were dating across that distance. Now it is the one we actually use, married, still in two timezones.
Common questions
What makes an app good for long distance?
It has to respect that you are awake at different hours. Tandem shows your partner's local time, evaluates each person's habits in their own timezone, and delivers the daily note at each person's own 8am rather than one shared clock.
Is it free?
Yes, it is free to use with no ads and no credit card. An optional Pro plan adds more games, themes, and higher limits.
Can we watch things together?
Yes. The watch room syncs a YouTube player, adds video chat, and supports screen sharing from a desktop browser.
Does it work on iPhone and Android?
Both. Tandem installs to your home screen from the browser and sends push notifications. There is no app store download.
How long does setup take?
About five minutes. One partner creates the space, the other joins with a six-character code or an emailed link.