PowerSupporter
A simple custom app costs A$8,000-$25,000. A mid-complexity business system costs A$25,000-$80,000. A multi-module platform with integrations costs A$80,000-$250,000+. Ongoing maintenance runs 15-20% of the build cost per year.
A quote request returns three numbers that differ by a factor of ten, with no explanation of what separates them. A vendor asks for the budget before scoping the project. The business has no reference point to know whether A$20,000 or A$120,000 is the right number for what it needs.
3 things that set the price
- Number of user roles and workflows — a single-user tool costs less than a system with different permissions for staff, managers and customers.
- Integrations — each connection to Xero, a payment gateway, or an existing database adds development and testing time.
- Data complexity — a system tracking one record type (e.g. bookings) costs less than one tracking linked records across multiple modules (e.g. inventory, orders, invoicing).
| Project Size | Cost Range | Timeline | Example |
|---|---|---|---|
| Simple app | A$8,000-$25,000 | 4-8 weeks | Booking form, single-purpose tool |
| Mid-complexity system | A$25,000-$80,000 | 2-4 months | CRM, internal dashboard, WMS phase 1 |
| Multi-module platform | A$80,000-$250,000+ | 4-8 months | ERP, multi-site WMS, marketplace platform |
Maintenance after launch — hosting, monitoring, bug fixes — typically runs 15-20% of the build cost per year. A phased build (start with the highest-value module, add the rest once it's live) keeps the first invoice closer to the low end of each range. Contact us for a scoped quote against your specific requirements.
Frequently Asked Questions
How much does custom software cost in Australia?
A simple custom app costs A$8,000-$25,000. A mid-complexity business system (CRM, booking platform, internal tool) costs A$25,000-$80,000. A multi-module platform with integrations costs A$80,000-$250,000+.
What ongoing costs come after the initial build?
Hosting, monitoring and bug fixes typically run 15-20% of the build cost per year. A A$50,000 system costs roughly A$7,500-$10,000/year to maintain.
PowerSupporter Editorial Team
Based in Melbourne, PowerSupporter builds custom software for Australian businesses — from warehouse management and inventory systems to web apps, mobile apps and internal business tools.