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Tandem – Your Couple's Shared Brain
Shared todos, calendar & finances for two
Couples juggle Todoist for tasks, Google Calendar for events, and Splitwise for money. That's three apps, three logins, and zero shared context. Tandem replaces all three with one shared space built specifically for two people. Everything syncs in real time — check off a task, add an event, or log an expense, and your partner sees it instantly. It works offline too. No account setup friction — pair with your partner in seconds and start organising life together.
Hey Product Hunt!
I moved in with my girlfriend, and we quickly realized we were terrible at organizing life together. Mostly my fault, honestly. I kept forgetting stuff she told me to do, we'd lose track of events we had planned for the week, and finances became a touchy subject — we both thought we were spending more than the other, and there was no easy way to prove it.
I'm a comp-sci student and also work full-time as a software engineer, so I thought — why not build a solution myself? One app that covers task management, a shared calendar, and finances.
There were some apps on the market, but none covered all three. Splitwise is great, but it only does finances. Google Calendar is fine, but lacks the other two. I didn't want three apps — I wanted one.
After a few weeks of building, the first version of Tandem was born. You pair up with your partner, and from that moment, everything is shared — todos, calendar events, and expenses. Full transparency, zero guesswork. And it goes deeper than the basics: todo management has custom lists, the calendar supports different views, and the finances screen tracks expenses and shows who owes what.
This is my first published app, and it's completely free. My goal was to solve my own problem, and I did. Now I want to help other couples dealing with the same thing.
Over the past month, I've been collecting feedback from friends and early users. There's a feature request form built into the app, so if something's missing — let me know, and I'll build it.
Thank you so much for reading. I hope you and your partner enjoy Tandem ❤️
About Tandem – Your Couple's Shared Brain on Product Hunt
“Shared todos, calendar & finances for two”
Tandem – Your Couple's Shared Brain was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #74 on the daily leaderboard. Couples juggle Todoist for tasks, Google Calendar for events, and Splitwise for money. That's three apps, three logins, and zero shared context. Tandem replaces all three with one shared space built specifically for two people. Everything syncs in real time — check off a task, add an event, or log an expense, and your partner sees it instantly. It works offline too. No account setup friction — pair with your partner in seconds and start organising life together.
On the analytics side, Tandem – Your Couple's Shared Brain competes within Android, Task Management, Couples and Calendar — topics that collectively have 177.8k followers on Product Hunt. The dashboard above tracks how Tandem – Your Couple's Shared Brain performed against the three products that launched closest to it on the same day.
Who hunted Tandem – Your Couple's Shared Brain?
Tandem – Your Couple's Shared Brain was hunted by Bruno Petković. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Tandem – Your Couple's Shared Brain including community comment highlights and product details, visit the product overview.
Bruno Petković