Construction estimating software in Australia: the 2026 buyer’s guide

Estimating is where Australian builders win or lose money. Quote too high and you don’t get the job. Quote too low and you carry the loss for the whole build. Spreadsheets get you part of the way – until plan revisions, supplier price changes, and three jobs running at once turn your quote workflow into a daily fire drill.

This guide compares the six estimating tools Aussie builders ask us about most often: Buildxact, CostX, Cubit, PlanSwift, Databuild, and Built Simple. We’ve laid out AU pricing, what each tool is actually good at, where it falls short, and a simple framework to decide which one fits how you build.

First, the category confusion: takeoff vs estimating vs PM with estimating

Before you compare prices, work out which kind of tool you actually need. The Australian construction software market lumps three quite different categories under “estimating”, and buying the wrong one is the #1 reason builders end up with shelfware.

1. Takeoff software

Takeoff software measures quantities off plans – linear metres of wall, square metres of slab, cubic metres of concrete, count of doors and windows. The output is a list of items and quantities. Pricing happens elsewhere, usually in a spreadsheet or estimating tool. PlanSwift is the classic example. Pure takeoff tools are fast for measurement but you still need to price the items yourself.

2. Estimating software

Estimating tools take quantities (either typed in, imported, or measured on plans) and turn them into a priced quote using rate libraries, labour costs, mark-ups, and tender templates. CostX and Cubit are the heavy-hitters here – used by commercial estimators and quantity surveyors. They include takeoff but their real strength is rate-based pricing at scale.

3. Construction PM with estimating included

This is project management software that has estimating built in – so you can quote, win the job, schedule it, manage trades, log defects, and close it out in one tool. Buildxact, Databuild, and Built Simple sit here. The estimating module is less deep than a pure tool like CostX, but you’re not buying a separate product to run the rest of the build.

Comparison table: AU estimating software at a glance

Prices are public-website estimates as of early 2026 in AUD. Most vendors negotiate, especially for multi-seat or annual deals. Always quote your actual situation before signing.

Tool-by-tool: who it’s for and where it shines

Buildxact

AU price: Approximately $199-$349/month depending on tier.
Who it’s for: Australian residential and custom home builders doing 5-30 builds a year who need detailed PDF takeoff, supplier price lists, and Xero sync.
Takeoff strengths: Mature 2D PDF takeoff with click-to-measure, area, count, and linear tools. Supplier price-list feeds from several Australian building supply chains. Templates for common build types.
Estimating strengths: Detailed cost templates, mark-up logic, customer-facing quotes that look professional. Xero integration for invoicing.
Weaknesses: Steep learning curve – expect 1-2 weeks to be fluent. Mobile app is a companion, not the main product. Pricing is higher than the value if you only estimate occasionally. No free tier – 14-day trial requires a credit card.

If you fit the profile, Buildxact earns its keep. For a simpler/cheaper alternative aimed at the same builder, see our Buildxact alternative comparison.

CostX (Exactal / RIB)

AU price: From around $3,500/year per user on subscription; perpetual licences negotiated direct.
Who it’s for: Quantity surveyors, commercial estimators, and tier 2-3 builders bidding on tender packs. Used heavily in AU commercial construction.
Takeoff strengths: Industry-standard 2D PDF and 3D/BIM takeoff. IFC model takeoff with live linking back to the model. Multiple revision handling.
Estimating strengths: Tender-grade pricing with full rate libraries, sub-contractor packages, and report output that meets commercial submission standards.
Weaknesses: Overkill for residential and SMB builders. Desktop only, Windows-focused. Steep cost, steep learning curve. Not designed for managing a built project – it’s a pre-construction tool.

Cubit (Buildsoft)

AU price: Roughly $2,000-$4,000/year per seat depending on modules.
Who it’s for: Australian estimators and builders who need tender-pack estimating with strong on-screen takeoff. Popular with civil and commercial subbies.
Takeoff strengths: On-screen takeoff with vector and raster PDFs, BIM takeoff via separate module, strong report builder.
Estimating strengths: Rate libraries, sub-contractor quote management, tender output formatted for AU commercial submissions. AU-built and AU-supported.
Weaknesses: Desktop only. Like CostX, it’s a pre-construction tool – it doesn’t manage the build. You’ll still need scheduling, defects, and team-tracking elsewhere.

PlanSwift

AU price: From around $1,800/year per seat (US product, AU resellers add support).
Who it’s for: Subbies and estimators who need fast PDF takeoff and price somewhere else (Excel, an estimating tool, or by hand).
Takeoff strengths: Quick to learn, click-to-measure on PDF plans, multi-page handling, custom assemblies (so a “wall” can auto-trigger studs + plates + cladding quantities).
Estimating strengths: Light. PlanSwift is takeoff-first. You can build pricing inside it but most users export quantities to Excel and price there.
Weaknesses: US product so no AU price-list integration out of the box. No project management. Desktop only.

Databuild

AU price: Around $2,400-$6,000/year depending on tier and modules.
Who it’s for: Australian residential builders (volume and custom) who want estimating, accounting, and job costing in one platform with Xero/MYOB sync.
Takeoff strengths: Integrated takeoff with AU price-list feeds. Strong supplier-list integrations built up over years.
Estimating strengths: Full residential building workflow – quote, contract, variations, claims, job costing. Direct integration with Xero, MYOB, and other AU accounting tools. Strong reporting for builders running 10-50 builds a year.
Weaknesses: Heavier than smaller builders need. Mobile is limited. Setup is real work – expect a few weeks to get rate libraries dialled in. Pricing climbs fast with seats.

Built Simple

AU price: Freemium $0, Home Projects $39/mo (owner-builders), Tradie $79/mo, Builder $199/mo, Pro $399/mo. About 20% off on annual.
Who it’s for: Tradies, owner-builders, and SMB builders who want estimating, scheduling, team tracking, defects, and 50+ trade calculators in one mobile-first tool. Built in Melbourne.
Takeoff strengths: Honest answer – we don’t pretend to compete with CostX or Buildxact on deep PDF takeoff. Our estimating is quantity-and-rate based, suitable for small jobs and renovation work where the takeoff is straightforward.
Estimating strengths: Quick quotes, customer-facing PDFs, mark-up logic, version handling. Up to 10 takeoffs on Tradie, 25 on Builder, unlimited on Pro. Free concrete cost calculator and 50+ others embedded into the workflow.
Weaknesses: No deep BIM or commercial tender takeoff – if that’s your daily work, choose CostX or Cubit. No Xero/MYOB sync (yet) – your bookkeeper will export and import manually. Smaller supplier price-list integration than Buildxact or Databuild.

How to choose: a four-question framework

If you’re staring at the comparison table feeling stuck, work through these four questions in order. They’ll cut your shortlist to two tools.

Question 1: How often do you estimate?

• Every day, multiple tenders a week: You need a dedicated estimating tool. Look at CostX, Cubit, or Buildxact.
• 2-4 quotes a week: Buildxact, Databuild, or Built Simple Builder/Pro all work. Pick on the other three questions.
• 2-3 quotes a month or less: Don’t overspend. Built Simple, an entry tier of Buildxact, or even a well-built spreadsheet plus PlanSwift will do.

Question 2: How big are your projects?

• Single-trade jobs, renovations, small builds under $300k: Built Simple Tradie at $79/mo gives you everything you need. Home Projects at $39/mo if you’re an owner-builder running your own build.
• Full residential builds $300k-$2m: Buildxact, Databuild, or Built Simple Builder. The deciding factor is usually point 3 below.
• Commercial, tier 2-3, or BIM-based projects: CostX or Cubit. Other tools won’t have the reporting, takeoff depth, or rate-library structure you need.

Question 3: What does your bookkeeper need?

• Bookkeeper insists on Xero or MYOB sync from your estimating tool: Buildxact (Xero) or Databuild (both). Built Simple doesn’t sync yet – you’ll export manually.
• Bookkeeper is fine with CSV exports or invoices generated in your accounting tool from supplied quotes: Any tool in this guide works. Don’t pay extra for sync you don’t need.

Question 4: Are you on site or at a desk?

• Mostly on site, running jobs from your phone: Built Simple is the only tool in this guide that’s mobile-first by design. Buildxact and Databuild have mobile companions but the main product lives on a desktop.
• Mostly at a desk, occasionally on site: Any tool works. Choose on takeoff depth and price.
• Pure estimating role, never on site: Desktop tools are fine. CostX, Cubit, PlanSwift are all built for this.

AU compliance and cost-database notes

A few things specific to Australia that affect which estimating tool actually saves you money.

Supplier price lists

If you build with Bunnings Trade, Reece, BlueScope, James Hardie, or one of the major AU building supply chains, the value of supplier price-list integration is real. Buildxact and Databuild have direct feeds for several of these. CostX and Cubit support imports but you maintain the lists yourself. PlanSwift has no native AU supplier integration. Built Simple does not have direct supplier feeds yet – we’re in roadmap.

GST and AU pricing

All AU estimating tools handle GST and AUD natively. Watch for US-origin products (PlanSwift) where mark-up logic and tax handling may need configuration.

HIA, MBA, and contract-aligned quote output

If you build under HIA or MBA contracts, your quote needs to align with the contract schedule structure. Databuild and Buildxact have templates for this out of the box. Cubit can be configured. Built Simple’s quote PDFs are clean and customisable but you’ll set up the structure yourself the first time.

Cost databases

Tools like Rawlinsons and Cordell publish AU construction cost databases. CostX and Cubit have integrations or import paths for these. Most builders building their own rate libraries from supplier prices and historical jobs don’t need them – they’re more relevant in commercial estimating and quantity surveying.

Construction industry payments

Security of Payments Act compliance (progress claims, payment schedules, response timeframes) is workflow you need somewhere in your business. Databuild has it baked into the residential builder workflow. The others assume you handle it in your accounting tool or a separate document.

What we recommend, by builder type

Honest positioning: where Built Simple fits and where it doesn’t

We could write a 5,000-word piece claiming Built Simple beats every tool on this list. It wouldn’t be true. Here’s where we’re the best choice and where we’re not:

Built Simple is the right pick if: you want estimating included with the rest of your project management, you run jobs from a phone, you don’t need deep BIM takeoff, your bookkeeper can live without Xero sync for now, and you don’t want to pay enterprise prices for SMB problems.

Built Simple is not the right pick if: you tender commercial projects and need CostX-grade BIM takeoff and reporting; if your accounting workflow absolutely depends on Xero or MYOB sync from your estimating tool; or if you have a dedicated estimator who does only takeoff every day and needs the deepest tool money can buy.

If we’re not the right pick, one of the others on this list almost certainly is.

Frequently asked questions

Bottom line

Don’t buy the most-featured estimating tool. Buy the tool whose features match how often you actually estimate, how big your jobs are, and how your bookkeeper wants to work. Pure estimating shops should look at CostX, Cubit, or PlanSwift. Residential builders quoting often should look at Buildxact or Databuild. Tradies, owner-builders, and SMB builders who want estimating included with the rest of their job management – and who run their business from a phone – should start with Built Simple’s free tier and upgrade if it earns it.

The cheapest way to find your answer is to spend an hour with two tools on a real quote. Most of the vendors here will give you a trial. Use it.