Protractor° Duo is now available
You're working on a sketch and want to check an angle. You could guess, or go looking for a protractor. Your phone is already…
Independent app studio · Since 2008
We build apps
that we love to use.
Thoughtfully made, and kept useful for the long run.
Meet our appsJust released
Measure angles with the fold of your phone, then save a reading for later. Only for iPhone Duo.
Explore Protractor° Duo
Small studio, long history
Our favourite ideas usually start with something we want ourselves.
We’ve been making useful, curious little apps since 2008. Some become everyday tools, some teach us what to build next, and the best ones do both.
Just2us is operated by JUST2US PTE. LTD., a Singapore company (UEN 202218107R).
Read the stories behind the apps