TL;DR — They solve different problems
EstimateOne is a Melbourne-built commercial tender platform (founded 2007, acquired by Procore in 2022). It helps subcontractors and head contractors win commercial bids — tender distribution, document control, addenda tracking. Built Simple is a Melbourne-built project execution platform (founded 2025). It helps residential builders, tradies, and owner-builders deliver jobs — scheduling, estimating, defects, team and equipment tracking. For most Built Simple users, you don’t need EstimateOne. For commercial subbies bidding $1M+ tenders, you may want both — EstimateOne to win the work, Built Simple to execute it.
EstimateOne vs Built Simple: at a glance
Different tools for different jobs
The honest framing first: this isn’t a head-to-head comparison the way Built Simple vs Buildxact or Built Simple vs Buildertrend is. EstimateOne and Built Simple barely overlap. They sit on opposite sides of the construction lifecycle.
| Dimension | EstimateOne | Built Simple |
|---|---|---|
| Core job | Win commercial tenders | Deliver residential and small commercial projects |
| Built for | Commercial subcontractors, head contractors, suppliers | Residential builders, tradies, owner-builders, small commercial |
| Typical user | Estimator at a $5M-$500M turnover commercial business | Tradie, builder, or owner-builder running $50k-$5M projects |
| Project stage | Pre-contract — tender, bid, award | Post-contract — schedule, build, defect, handover |
| Origin | Australian — Melbourne, founded 2007 (Procore-owned since 2022) | Australian — Melbourne, founded 2025 |
| Pricing model | Subscription — roughly $50-$200 AUD/mo for subcontractors; head-contractor pricing quote-based | Flat per business — Freemium $0, $39 / $79 / $199 / $399 AUD/mo |
| Free tier | Limited free access for subbies to view tenders | Yes — Freemium with 1 project, no credit card |
| Mobile-first | Desktop-first — bid documents are big and reviewed on screen | Yes — designed for builders working from a phone on site |
| What you get | Tender network, document control, addenda tracking, distribution lists, bid templates | Scheduling, estimating (small jobs), defects, team / equipment tracking, 50+ calculators |
| Best work type | Commercial & civil tendered work | Residential builds, renos, owner-builder projects, small commercial fit-out |
When EstimateOne is the right choice
EstimateOne has been around since 2007 and is the entrenched standard for AU commercial tendering. They’re the right pick if you fit one of these profiles:
- You’re a commercial subcontractor bidding tendered work. Electrical, mechanical, structural, joinery, security, cladding, etc. on commercial and civil jobs. EstimateOne’s tender network is where the work gets distributed.
- You’re a head contractor running tender packages. EstimateOne’s distribution lists, addenda management, and tender document control are purpose-built for this.
- You bid $1M+ projects regularly. The volume of documents, revisions, and trade packages on commercial tenders is exactly what EstimateOne was built to handle.
- Your work mostly comes through formal tender processes — not direct quoting to homeowners or repeat clients.
- You need to be visible to head contractors across the AU commercial market. EstimateOne is one of the main platforms head contractors use to send tender invitations.
If that sounds like your business, EstimateOne is doing a job that Built Simple was never designed for. Use it.
When Built Simple is the better fit
Built Simple is for the side of construction that EstimateOne doesn’t touch — execution, not bid-win. If you recognise yourself here, EstimateOne isn’t the tool you’re looking for:
- You’re a residential builder. New homes, renos, extensions, knockdown-rebuilds. Your work doesn’t come through tenders — it comes through referrals, leads, and direct quotes. EstimateOne wasn’t designed for residential workflows.
- You’re a tradie running small jobs. Sparkies, plumbers, chippies, tilers, landscapers running residential and small commercial work. You quote, you book, you build. There’s no tender to manage.
- You’re an owner-builder. You’re not bidding for the work — you’re managing your own build. EstimateOne has no use case for you. Built Simple’s Home Projects tier at $39 AUD/mo is purpose-built for this.
- You’re a small commercial fit-out or refurb business. Most of your work is direct-quoted, not tendered. You need a project execution tool, not a bid management tool.
- You need scheduling, defects, team tracking, and calculators — not tender distribution lists. These are different problems.
Could you use both?
Yes — and for some commercial subbies, it’s the right answer.
EstimateOne and Built Simple don’t compete. They sit at opposite ends of the project lifecycle. If you’re a commercial subcontractor who wins tendered work and then has to actually deliver it, here’s how the two fit together:
| Stage | Tool | What it does |
|---|---|---|
| 1. Find the tender | EstimateOne | Head contractor distributes the tender package via EstimateOne. You review documents, addenda, and submit your bid. |
| 2. Win the tender | EstimateOne | Award notification comes through EstimateOne. Contract signed offline. |
| 3. Schedule the work | Built Simple | Drag-to-reschedule timeline, dependencies, weather-aware. Plan crew and equipment. |
| 4. Build & track | Built Simple | Crew and equipment allocation, defects with photo and location pin, progress updates from site. |
| 5. Handover & defects | Built Simple | Defect list, sign-off, close out the job. |
For most commercial subbies, this is the realistic stack: EstimateOne to find and win the work, Built Simple to plan and deliver it. They’re not competing — they’re complementary.
That said, if you’re a residential builder or tradie, you probably don’t need EstimateOne at all. The work doesn’t come through tenders, so the tool doesn’t apply.
Pricing comparison
Because they solve different problems, comparing prices directly doesn’t make sense. Here’s what each actually costs:
| Plan | Built Simple (AUD, flat per business) | EstimateOne (approx., AUD) |
|---|---|---|
| Free / view-only | $0 — Freemium, 1 project, no credit card | Limited free access for subbies to view tenders |
| Entry | $39/mo — Home Projects (owner-builder, single project) | ~$50-$100/mo — subbie tier for bidding |
| Small business | $79/mo — Tradie, unlimited projects, up to 5 crew | ~$100-$200/mo — full subcontractor access |
| Mid | $199/mo — Builder, up to 15 crew, dependencies | Quote-based — head contractor tier |
| Top tier | $399/mo — Pro, no employee cap, Mat AI | Quote-based — enterprise / head contractor |
| Annual savings | ~20% off all tiers | Varies by negotiation |
If you’re a residential builder spending $50-$200/mo on EstimateOne and not winning tendered work through it, that’s money walking out the door — the tool isn’t built for your workflow. If you’re a commercial subbie winning enough tenders to cover the subscription, it pays for itself many times over.
Feature deep-dive: where each one wins
Tender management
EstimateOne wins outright. This is the entire reason EstimateOne exists. Tender document distribution, addenda tracking, revision control, RFI logging, bid templates, and head-contractor visibility. Built Simple doesn’t do any of this — we weren’t designed to. If you bid commercial tenders, EstimateOne is purpose-built and the AU industry standard.
Project execution (scheduling, defects, crew tracking)
Built Simple wins outright. Once the contract is signed and the work starts, EstimateOne’s job is done. Built Simple takes over: multi-stage scheduling with dependencies and weather, drag-to-reschedule timeline, defects with photo and location pin, team and equipment allocation across projects, progress updates from site. EstimateOne doesn’t try to do this.
Pricing models
Different by design. EstimateOne charges for access to a tender distribution network — the value is in being seen and being able to bid. Built Simple charges flat per business for a project execution tool — the value is in delivering jobs without spreadsheet chaos. Neither model is “better”; they reflect what each tool is actually for.
Document control during bidding
EstimateOne wins outright. Bid documents on commercial tenders are enormous — drawings, specifications, BOQs, addenda, revisions. EstimateOne’s document control is built around the bid-win stage. Built Simple’s document handling is project-execution oriented (drawings on site, defect photos, handover docs), not bid-document oriented.
Calculators & trade tools
Only Built Simple has these. 50+ free trade calculators — concrete volume, brick count, mortar mix, framing timber, retaining walls, footings, stair stringer, truss spacing, insulation R-value, ramp slope, tank volume. Free to use without logging in. EstimateOne doesn’t offer this — it’s not the tool’s job.
Mobile-first vs desktop-first
Built Simple wins for site work. Built Simple is the same product across phone, tablet, and desktop — designed for builders working from a phone on site. EstimateOne is desktop-first by necessity — you can’t review 200 pages of tender documents on a phone screen. Different jobs, different form factors.
Where EstimateOne clearly wins
Being upfront about what EstimateOne does better — because there’s no point pretending otherwise:
- Commercial tender distribution and visibility. EstimateOne has 20+ years and deep relationships with AU head contractors. If you bid commercial work, the tenders flow through EstimateOne (and a handful of similar platforms). Built Simple has zero presence in this market — we weren’t designed to.
- Document control during the bid phase. Drawing revisions, addenda, RFIs, distribution lists, tender clarifications. EstimateOne’s depth here reflects two decades of customer feedback from commercial estimators.
- Integration with commercial supply chains. Head contractors, subcontractors, suppliers all use EstimateOne to coordinate the bid phase. It’s where the network effect lives.
- Procore backing. Since the 2022 acquisition, EstimateOne benefits from Procore’s resources and roadmap depth.
- Bid templates and clarification workflows. Designed around how commercial estimators actually work.
If your business depends on winning tendered commercial work, EstimateOne is the right tool for that job. Built Simple doesn’t compete with it on that ground.
Who should pick which
| Your situation | Better fit |
|---|---|
| Owner-builder running your own home | Built Simple Home Projects at $39/mo |
| Sole tradie or 2-5 person residential crew | Built Simple Tradie at $79/mo |
| Residential builder, 1-4 builds a year | Built Simple Builder at $199/mo |
| Mid-size residential builder, mobile-first | Built Simple Pro at $399/mo |
| Small commercial fit-out / refurb (direct-quoted, not tendered) | Built Simple |
| Commercial subcontractor bidding $1M+ tenders | EstimateOne for bid management |
| Head contractor running tender packages | EstimateOne |
| Commercial subbie that wins tenders and then has to deliver them | Both — EstimateOne to win, Built Simple to deliver |
| You don’t bid tenders at all (residential / direct-quote work) | Built Simple only — EstimateOne won’t help you |
Try Built Simple free
No credit card. See if it fits how you deliver jobs — whether you bid tenders or not.
Frequently asked questions
Is Built Simple a replacement for EstimateOne?
No — they solve different problems. EstimateOne is a commercial tender / bid management platform. Built Simple is a project execution platform for residential and small commercial work. If you currently use EstimateOne to find and win tendered commercial work, Built Simple won’t replace that. If you don’t bid tenders at all, you don’t need EstimateOne — Built Simple covers what you actually do.
Can I use both EstimateOne and Built Simple?
Yes, and for many commercial subcontractors that’s the right setup. Use EstimateOne to find tenders, review documents, and submit bids. Once you win the work, use Built Simple to schedule the job, allocate crew and equipment, track defects, and close it out. They don’t overlap.
I’m a residential builder — do I need EstimateOne?
Almost certainly not. EstimateOne is built around commercial tender workflows. Residential work comes through referrals, leads, and direct quotes — not formal tender processes. If you’re a residential builder, tradie, or owner-builder, EstimateOne is the wrong tool. Built Simple is the right fit.
What does EstimateOne cost in Australia?
EstimateOne pricing varies. Subcontractors typically pay around $50-$200 AUD/mo for full bidding access. Head contractor pricing is quote-based and depends on tender volume. There’s limited free access for subbies who want to view tenders. Built Simple is flat per business — Freemium $0, then $39 / $79 / $199 / $399 AUD/mo.
Is EstimateOne still Australian-owned?
EstimateOne was founded in Melbourne in 2007 and remains an AU-based product. It was acquired by Procore (US-headquartered) in 2022 but continues to operate as an AU-focused tender platform. Built Simple is independent and Melbourne-based, founded in 2025.
Does Built Simple handle commercial work at all?
Yes — for small commercial work (fit-outs, refurbs, small new-builds) that’s directly quoted rather than tendered, Built Simple works well. Where Built Simple isn’t the right fit is large tendered commercial and civil work — that’s a different workflow with different tooling needs (and where EstimateOne, Procore, and similar platforms live).
Bottom line
EstimateOne and Built Simple aren’t competitors — they’re two different tools for two different stages of construction. EstimateOne is for winning commercial tendered work. Built Simple is for delivering residential and small commercial projects. If you bid commercial tenders, EstimateOne is the AU standard. If you don’t bid tenders, EstimateOne isn’t the tool you’re looking for — and Built Simple probably is.
For commercial subbies who do both — win tenders and deliver the work — using both makes sense. EstimateOne for the bid phase, Built Simple for the build phase.
The fastest way to know if Built Simple fits your delivery workflow is to try it: start free with no credit card and take it for a spin on your next job.