About · AU-owned & operated

A studio that
ships secure.

AppTheory is an Australian app studio built by people who came up through security. We make mobile apps, web apps, and custom ecommerce — and we test every one like the adversary we used to be.

Talk to us Build a scope

● Our story

Born from
security.

Most software studios bolt security on at the end — if at all. We came from the other side: testing and breaking applications for a living. That experience taught us how most software gets built insecurely, and how avoidable it usually is.

So we built AppTheory to do it differently — to design and build software the way it should be built, with security woven through the whole process rather than sprayed on at the end. Every build we ship is penetration-tested by CREST-certified testers before launch.

We’re the sister studio to TrackTheory, a custom performance-parts ecommerce platform we built end to end. It’s proof of the kind of secure, bespoke software we make for clients — running in the real world.

● What we value

Three things we
won’t bend on.

Security-first

We started in security, so we build like attackers are watching — because they are. Every build is pentested before it ships.

Transparent pricing

Fixed, milestone-based pricing you can see up front. No hourly mystery, no scope-creep surprises on the final invoice.

Ship working software

A demo isn’t a product. We build the version that goes live — tested, secured, and ready for real users.

● How we bill

Equal thirds.
No surprises.

Every engagement is split into three equal milestones, so you pay as the work ships and always know where you stand.

011 / 3

Deposit

A third up front kicks off design and architecture. Clear scope, clear price.

021 / 3

Proof of concept

A working POC to review and sign off on. The second third is due on approval.

031 / 3

Production

Pentest, fixes verified, and launch. The final third on production release.

● Fixed total, agreed up front● Pentest included in every build

Let’s build
something good.

Tell us what you’re making, or build a scope and we’ll come back with a fixed, milestone-billed quote.