The studio behind Mark

northOS.

A small, dedicated studio in Montréal, building software that's worth keeping.

We're a small team in Montréal, Québec. Canadian through and through, dedicated past reason, and happiest when we're building things people actually live with.

Over the years we've shipped iOS and web apps across a few different worlds: wedding apps for the most important day, crypto tools for the curious, and project-management software for teams that need to stay in step.

Mark is our most personal one yet. It's where we turned our attention inward: not toward shipping faster or doing more, but toward remembering the life happening in between. Rituals, tasks, and moments, held together in one quiet timeline.

We build slowly and care loudly. If that sounds like your kind of software, you're in the right place.

Based in
Montréal, Québec
Team
small & dedicated
We make
iOS & web apps
Right now
Mark, on TestFlight

What we build

iOS

Mark

Rituals, tasks, and memories in one timeline.

Web & iOS

Weddings

Tools for the day that matters most.

Web

Crypto

Calm, capable tools for the curious.

Web

Project mgmt

Software that keeps teams in step.

we build slowly,
and care loudly.

Mark is the clearest expression of that yet: a place to remember your life, not just manage it.

Join the TestFlight say hello