We design, build and launch software.

A senior team in Adelaide making web, mobile, SaaS and AI products, and running them after launch.

Start a project See our work

AdelaideHeadquarters

United Kingdom

Miami

Texas

Illinois

Michigan

Hawaii

Built in Adelaide. Working with clients across Australia, the United Kingdom and the United States.

It's --:-- in Adelaide.We reply within one business day.

Fixed quote, in writing.In Australian dollars. If the scope changes, the price changes on paper first.

A demo every two weeks.Working software on staging you can log into, wherever you are.

Yours from day one.Code, infrastructure and cloud accounts in your name.

We write the code behind the product. Pick a kind of build to see what we'd write, and what it ships.

app/bookings/page.jsx

What it ships

Mia RussoInitial consult, 45 min9:00 am

Tom NguyenFollow-up, 30 min10:30 am

Priya ShahSports injury, 45 min1:15 pm

Example output from a demo project.

What we're best at. We build all kinds of software, and these eight are where we do our best work.

4 to 8 weeks

Business websites

Fast, accessible sites with search set up properly and content your team can edit.

The Luigi Delicatessen website on a laptop and a phone, beside a ChatGPT answer recommending Luigi for Italian in Adelaide

MVPs from $35K

SaaS platforms

Billing, tenancy, roles and admin built in from launch, not bolted on later.

PRESTIX on a laptop: the Ultra Australia Melbourne 2025 event page with the ticket price, a countdown and Get Tickets

From $20K

Web and mobile apps

iOS, Android and the web, with the App Store and Google Play release handled.

Three apps on phones: PRESTIX upcoming events, Appetite food ordering and UrbanHires clothing hire

From $32K

AI and machine learning

Assistants and search over your own documents, with evaluation and cost limits.

Stefano, the Appetite AI assistant, on two phones: telling a venue how last night went and marking a dish sold out, and suggesting vegetarian dishes to a customer ordering at Ferro

8 to 24 weeks

Custom software

Internal tools and portals that talk to the systems you already run.

A 3D walkthrough of a home with a floating panel for choosing paint and wallpaper for the living room and kitchen walls

Part of every build

UI/UX design

Research and prototypes tested with real people. We build what we design.

One food-logging screen at three stages, wireframe, design and finished app: scanning a protein powder's barcode and adding it to Snacks

Fixed or ongoing

DevOps and cloud

Deploys, monitoring and infrastructure as code, in your own cloud account.

Appetite POS on two phones: the production overview with requests, latency and uptime, and a release rolling out to production

Monthly plans

Website and email hosting

Hosting, domains and Google Workspace or Microsoft 365 email, in your accounts and looked after by us.

The Appetite website and its support@appetitepos.com.au inbox, hosted in Sydney with SSL, nightly backups and uptime monitoring

Building something else? Tell us about it.

Things we've put live. Client work first, then two products we run ourselves.

All projects

Client work

UrbanHires

Rent it, hire it or buy it. A sustainable fashion marketplace for iOS and Android, where people earn from the clothes already in their wardrobe.

We builtiOS and Android app, backend, landing page

StackReact Native, Express.js, Webflow

SectorFashion, marketplaces, payments

Read the case study

UrbanHires on two phones: the hire feed with search, and a dress listing with sizes, colours and Afterpay

The hospitality platform designed for success.

Appetite

Point of sale and online ordering for restaurants: the counter, kiosks and the venue's own ordering app, in one system.

iOSAndroidKioskPOS

Powerful ticketing, made affordable.

PRESTIX

An events and ticketing platform for nightlife: see what's on nearby, buy tickets and earn rewards, on iOS, Android and the web.

iOSAndroidWeb

Built properly, shipped often. The engineering habits behind every project, out in the open.

Every change is checked before it ships

Automated tests on every push, accessibility and performance checks in the pipeline, and a second engineer reviews the code.

Add deposit at booking #142, demo projectChecks running

Unit and integration tests
Type and lint checks
Accessibility audit
Performance budget
Code review by a second engineer

Released in stages

New features go out behind a flag, to a few people first.

Rollout 25% of users

Watched after launch

Monitoring and alerts from day one, so problems come to us before your customers notice.

Web appOperational

APIOperational

Mobile APIOperational

Yours from the first commit

Code, cloud and domains sit in your accounts. You simply share access to us.

RepositoryYour GitHub

CloudYour AWS account

DomainsIn your name

A demo every two weeks

Working software on staging at the end of every sprint, ready for you to try.

Sprint 1Sprint 2Sprint 3

Or ask the terminal. It knows our prices, our stack and what we've shipped.

Type a command and press enter. Tab finishes a command, and the arrow keys bring back what you typed.

Interstellr studio shell. Type help to see what it knows.

Client reviews

In our clients' words.

5.0 from 3 client reviews

UrbanHires Apparel

“Working with Alex from Interstellr was an incredible experience. He took the time to understand my vision, offered creative ideas, and delivered a high-quality app that exceeded my expectations. Alex is professional, approachable, and always went the extra mile to ensure everything was perfect. I highly recommend him to anyone looking for a talented and reliable developer!”

LAKK Group

“Interstellr have been helpful since day one, since I started working with them in November last year, they’ve helped me market our family business, and keep our in-store tech online whenever something goes down.”

Petrakis

“Interstellr brings a premium touch to every project, combining clean design with reliable performance. The team is incredibly efficient, easy to work with, and clearly knows their craft. Highly recommend them to anyone looking for top-quality digital and tech services!”

Work with us

Interstellr Event Production

By night, we run the show.

Lighting, lasers, LED and visuals for festivals, concerts and club nights, designed and run by our own crew.

Book your event Event production

Tell us what you're building.

A few lines is enough. We reply within one business day, usually with questions rather than a pitch.

Start a project Book a paid session