Estimate Software for Contractors (2026): 10 Apps Compared

A quote that goes out three days late, or looks like it was written on the back of a van, can lose a job before anyone's compared the numbers. That's the gap estimate software is meant to close, and there's more choice than most contractors expect.

The ten apps below are listed alphabetically and in no particular order. Each description comes from the vendor's own website, read on 1 Nov 2026. This page covers general contractor quoting rather than one trade, and nothing here is advice on licences, tax or contract terms.

Contractor estimating apps compared

Tool	Type	Good for
Ascora	Field service software	Quotes that turn into scheduled jobs
Buildxact	Estimating and project software	Takeoffs, estimates and quotes for builders
Estimy	Voice quoting app	Dictating a quote that becomes a PDF
Insta Quotes	AI quoting app for tradies	Itemised quotes from a voice note or photo
Joist	Estimating, invoicing and payments app	Moving a job from estimate to invoice
Knowify	Construction management for trades	Estimates, contracts and proposals for trade contractors
Markate	Field service platform	Estimates without an in-person visit
ProWorks	Job management for UK trades	Quotes, diary and invoices for UK trades
ServiceM8	Field service app	Estimating and invoicing while on site
Tradify	Job management software	Enquiries through to invoices in one app

Ten quoting and estimating apps

Ascora

Best for: Trade businesses wanting fast quotes that turn into jobs, with scheduling, timesheets and invoicing synced to QuickBooks Online or Xero.

Buildxact

Best for: Residential builders who want AI-powered takeoffs and estimating, then scheduling and job tracking through to the final invoice.

Estimy

Best for: Contractors who'd rather dictate a quote and let the app structure it into a professional PDF the customer can sign online.

Insta Quotes

Best for: Australian and New Zealand tradies who want itemised quotes from a voice note, photo or rough description, sent as a branded PDF.

Joist

Best for: Contractors who want estimates, invoices and online payments in one simple workflow, with job and client records alongside.

Knowify

Best for: Trade contractors on commercial and residential work who build estimates, contracts and proposals and want job management that works with QuickBooks.

Markate

Best for: Field service businesses that want estimates and invoices plus virtual video estimates that skip the site visit.

ProWorks

Best for: UK tradespeople who want quotes, the diary, the team, invoices and service reminders kept in one place.

ServiceM8

Best for: Small trade and home service businesses, from sole traders up to 20 staff, who estimate and invoice on site from a phone.

Tradify

Best for: Trades businesses bringing inquiries, estimates, quotes, jobs, staff and invoices together in one job management app.

Quote app, job manager or estimating suite?

The vendors' own titles sort this out quickly. Estimy is 'Voice Quotes for Contractors' and Insta Quotes is a 'Quoting App for Tradies': both get the quote out fast and keep the rest light. Joist calls itself 'Contractor Estimating, Invoicing, & Payment Software', and Buildxact is 'Estimating & Project Management Software' built around takeoffs.

Then come the job managers. Tradify and ProWorks both describe themselves as 'Job Management Software' for trades, Ascora is 'Field Service Software for Contractors', Markate is a 'Service Operations Platform for Field Service Businesses', Knowify is 'Construction management software for trade contractors' and ServiceM8 is 'Smart Field Service Software'.

So here's the split a contractor wouldn't guess: a quote app writes the estimate and stops, job-management software carries the quote on into scheduling and invoices, and estimating software builds the number from takeoffs. Choose the one that matches how far past the quote you want the software to go.

What goes into a quote customers say yes to

Whatever the app, the quote itself does the selling. A clear quote names the customer and the site, breaks the work into line items for labour and materials, says what's included and what isn't, gives a start window and an expiry date, and makes it easy to accept. Some of these apps add online signing, so the customer can say yes from their phone the same evening.

Templates, takeoffs and voice: three ways to build an estimate

• Templates and item lists. Save your common jobs and materials once, then build each quote from them. It's the fastest route for repeat work like call-outs and small installs.
• Takeoffs from plans. Estimating software measures quantities from drawings, so bigger builds start from the plans rather than a guess. It takes longer to learn but suits renovation and new-build work.
• Voice and photo quoting. Newer apps let you describe the job or snap a photo and then draft line items for you to check. Always review the draft before it goes out, because you're the one standing behind the number.

If you'd like to use AI in the quoting step more widely, my guides on AI tools that help construction companies write quotes and how plumbers and electricians can quote faster with automation go further.

Questions to ask before you switch

1. Do you only need quotes, or quotes, scheduling and invoices together?
2. Does it work on the phone you carry on site, and what happens when there's no signal?
3. Can customers accept the quote online, and does it turn into a job or an invoice automatically?
4. Does it sync with your accounting software, such as QuickBooks or Xero?
5. Is it set up for the country you work in and the way your trade quotes?
6. Can you bring your existing customer list and item library across?

Do you make estimating or quoting software for contractors? Tool makers can ask to be considered for a featured place on this list.

My plain advice on choosing contractor estimate software

Be honest about where the paperwork hurts. If it's only the quote, a quote app will get estimates out the same day without forcing a whole new system on you. If jobs slip between the quote, the diary and the invoice, job-management software is the bigger fix. If you're estimating larger builds from plans, an estimating suite with takeoffs is the one to look at. Try any of them with one real job before you move everything over. Once the job is won, construction accounting software is the next system to compare.

If you're also weighing up the bigger field service platforms, my list of Jobber alternatives covers that end.

Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.

Frequently asked questions

What is estimate software for contractors?

It's software for building and sending job quotes. Some apps stop at the quote, while others carry it through to scheduling, invoicing and job tracking.

What's the difference between an estimate and a quote?

People often use the words for the same thing. In many trades an estimate is an approximate number and a quote is a firm offer, so make it clear on the document which one you're sending.

Can I write estimates on my phone?

Yes. Most of these apps run on a phone or tablet, so you can build and send a quote from the job site, and some let customers sign online.

Do I need takeoff software?

Only if you estimate from drawings. Takeoff tools measure quantities from plans, which helps on renovations and new builds. For call-outs and small jobs, templates and saved item lists are usually quicker.

Can AI write my quotes?

Some apps now draft line items from a voice note, photo or description. They save typing, but you still need to check every line before the quote goes to a customer.

Will estimate software work with my accounting software?

Many apps do, often with QuickBooks or Xero. Check the vendor's own integrations page for the exact package you use.