From idea to launch.
Custom web application development built end-to-end — whether you're shipping a new product, modernising an internal tool, or replacing legacy software. Senior Australian engineers. Yours to own.
starts with a chat.
Web apps of every shape.
Our web application development covers everything from customer-facing SaaS to the internal tools that run a business — these are the categories we work in most often.
Multi-tenant SaaS products
Sell-it-as-a-product platforms with tenant isolation, billing, and admin built in.
Customer & partner portals
Self-serve portals for the people outside your business who need to interact with it.
Internal admin & operations apps
The back-office tools that run your business — built around the way your team actually works.
Dashboards & data platforms
Aggregate, surface, and act on data from across your systems and the wider world.
Marketplaces & matching engines
Two-sided platforms that match supply and demand — with the matching logic that fits your market.
Legacy modernisation
Replace ageing on-prem or in-house web apps with a modern stack — without losing what worked.
Why build your own?
There's no shortage of web app development companies out there. Here's what makes Alliance — a custom web application development company in Melbourne — different.
End-to-end delivery
Design, build, deploy, and keep improving. One team across the whole lifecycle — not a relay race between vendors.
Senior engineers, here in Australia
No offshore relays, no junior-led builds, no overnight handoffs. People you can sit next to when it matters.
You own the IP
The code, the data, and the platform — yours from day one. No vendor lock-in. No mystery codebase.
What does it cost?
Web app builds span from focused team tools to multi-tenant platforms. Here's roughly where most engagements land.
Starter
From $50k / build
Focused web app for a single team or audience.
Growth
$200k / build
Multi-feature web platform with integrations and ongoing iteration.
Enterprise
$400k+ / build
Large web platforms — multi-tenant SaaS or enterprise-grade web systems.
Don't want the big CapEx spend up front?
Talk to us about our Bespoke SaaS delivery model — all the benefits of custom software, paid monthly, with full IP handover at the end of the term.
Got a web app you've outgrown — or one you're about to launch?
Tell us what you're building, or what's holding the current platform back. We'll figure out the right shape for it.
Built with your team, not just for them.
Every build begins with our fixed-price Discovery engagement. The aim is simple: understand how your team actually works, sketch the solution together, and prove the design before a single line of production code gets written. It's the discipline our clients hire us for.
Talk to the people who use it
We sit with the people who'll touch the software every day. Their pain points are your requirements. We listen for what slows them down today and where a tool built for them would change the day.
Map the work, not just the wishlist
The actual processes the software has to serve: intake, approvals, handoffs, the exceptions. We document them in your team's language, not ours, so everyone agrees on what's being built before anything gets built.
Sketch the screens together
Whiteboards, paper, low-fidelity mockups. Visual conversation surfaces disagreements about how the work really flows in seconds, disagreements that written specs would let slip silently into the build.
Build a clickable prototype
Realistic enough to test. Your team plays with it, finds what's wrong, and tells us what to fix, cheaply, before a line of production code exists. Most surprises surface here, not in user acceptance testing.
Ship, refine, repeat
Two-week sprints. Working software in front of your team continuously. They feed back, we refine, they feed back again, until the tool fits their day so well they'd resist going back.
WHY WE WORK THIS WAY
Visual conversation moves faster than written requirements, and your team can tell us what's wrong before we build it. Mockups and prototypes turn a 6-month spec debate into a 6-week design loop. Cheaper iteration. Fewer surprises. Software your team actually wants to use.
Web apps in the wild.
AccessIQ
Multi-tenant SaaS web platform for the Australian training sector. 22,000+ students, 1,700+ workshops, sector-leading adoption — built and grown on a modern web stack.
Qest Infrastructure
A web platform managing the full lifecycle of field operations across multiple Australian states — scheduling, resource allocation, digital worksheets, invoicing, and payroll exports. The back-office that runs a real business.
Dimeo
Dimeo runs a complex operation across procurement, inventory, customer orders and dispatch. We built a custom web platform tailored to the specifics of their business, replacing a stack of disconnected tools with one source of truth.
The software is a perfect blend of the best of both our companies' thinking. We can't speak highly enough of the work Alliance Software has done.
Marcus Andrews
Founder & Counsellor, Life Supports Counselling
Let's build something
great together.
Every great project starts with a conversation. Tell us what you're working on and we'll figure out the best way to help.
Or call us on 03 9955 7000