Independent software · Adelaide, Australia

Two developers.
The details matter.

We make software for the things you do every day. From sharing family life to running a property agency, each app starts with a problem we want to solve.

Find your next app

For commercial property teams

KeystoneBusiness software

From opportunity
to settlement.

Pipeline, revenue forecasts and agent commissions. A different kind of software, built for the work your agency does.

Keystone’s commercial property pipeline, stage mix and revenue forecasts

Keystone: Commercial property opportunities on mobile

Software for your agency’s workflow.Talk to us about Keystone →

A little help with everyday life.

Small tools for the things that matter.

Make time for a little play.

Something to think about. Someone to compete with.

SudoklingSudoku

One daily puzzle.
A real race.

Race the competitive daily Sudoku, compete for Elo, and practise when you want room to think.

Explore Sudokling

Sudokling: Competitive daily race and Elo rating

Sudokling: Sudoku practice with pencil notes

The people behind the apps

A small studio.
A direct line to us.

0x2 is hexadecimal for two. We’re two experienced developers in Adelaide, bringing different technical backgrounds together to make the apps on this site.