TeuxDeux is a simple designy to-do app for the Web and iPhone.

It all started in 2010 as a conversation amongst friends over lunch in Brooklyn, NY. We (Tina Roth Eisenberg and Fictive Kin) shared a desire for a specific kind of list-making app: one as uncomplicated as a piece of paper, with the same simple joy of crossing things off, but built like a calendar and without the risk of getting eaten by a dog or tossed in the trash.

So, in the tradition of many great products to come before us, we built the very thing we wanted.

Over the course of a decade, TeuxDeux has become a loyal list app to hundreds of thousands of users (and growing). We’re in it for the long haul: everything we do is with sustainability top of mind and a value of timelessness over trends. We know that what benefits our users most is ultimately TeuxDeux’s simplicity. We’ll make small changes along the way, but we’ll always stick to what we do best.

If you love making lists, you’ll love TeuxDeux.