Custom web app development agency in Adelaide
100 FOUNTS is an Adelaide agency that builds custom web apps for owner-operated businesses: customer portals, quoting tools and internal systems for the work no off-the-shelf software fits. We scope it, quote a fixed price per phase, build it with weekly demos and hand it over with the code and accounts in your name.
What we build
- Customer portals: a place where customers log in to see bookings, documents or progress
- Quoting and ordering tools, so a quote does not start from a blank spreadsheet each time
- Internal tools: dashboards and workflows that replace copying data between systems by hand
- Booking flows that do not fit a standard booking tool
- AI features where they remove real hours, such as reading documents or drafting replies a person approves
What a custom web app is
A custom web app is software built around how your business actually works, instead of bending your process to fit a generic tool. It runs in the browser, so your team and your customers need nothing installed, and it connects to the tools you already use, such as your calendar, accounting or CRM.
Delivered with this
- Alternatives Skin & BodyAesthetic studio offering body contouring, skin rejuvenation and pre- and post-surgery care, with online booking.Live
- NopalMatesCommunity platform for Spanish-speaking migrants settling in Perth — settlement guides, expert sessions, events, a venue map and first-hand stories.Live
- JOOVEA live map of community reuse across Australia — kerbside finds, garage sales, hazards and local events, in real time.Building
- NOANA conversational AI assessment of your Australian skilled-migration profile, run before you pay a migration agent.Stealth
How it runs
- 1 week
Discovery
- 1–2 weeks
Design & plan
- 4–12 weeks
Build
- Ongoing
Launch & support
Questions this raises
- What is custom web app development?
- It is building software for one specific business, instead of buying a general tool. You choose it when your process is unusual, when off-the-shelf tools cost more in workarounds than they save, or when the software is the product.
- How much does a custom web app cost in Adelaide?
- It depends on what the app has to do: the number of user types, whether there are accounts, payments or integrations, and how much custom logic is involved. We quote a fixed price per phase after the discovery session, so you know the number before you commit. We do not publish a price list.
- How long does it take to build?
- Something with accounts or custom logic usually runs 8–16 weeks, with a demo every week. A smaller tool can be quicker; the discovery session gives a realistic timeline.
- How do I choose a custom web app agency?
- Ask who owns the code and the accounts, whether the price is fixed per phase, how often you will see working software, and who supports it after launch. With us the answers are: you, yes, every week, and we do.
- Who is this for, and who is it not for?
- It is for businesses with a process that off-the-shelf software does not fit. If a standard tool already does the job, we will say so rather than build something you do not need.