🔨 Built for tradesmen

The Best Invoice App
for Tradesmen

Spanner is the invoice app built for tradesmen — mechanics, plumbers, electricians, builders, and every trade in between. Send quotes customers approve online, itemise labour and materials, calculate tax automatically, and collect card payments via Stripe — all from your phone. Available in AU, US, UK, NZ, and CA.

Download on the App Store Get it on Google Play

Free to download · Up to 5 invoices & quotes free · No credit card

Which tradesmen is Spanner for?

Mechanics
Plumbers
Electricians
Builders
Carpenters
Landscapers
Handymen
Any Trade

Everything a tradesman needs to get paid

📝

Quotes customers approve online

Send a quote by link — your customer approves or declines from any device, no app needed. Convert to an invoice in one tap.

🧱

Labour + materials line items

Itemise everything — labour, materials, callout fees. Save your common items as quick-add chips for faster quoting.

💳

Card payments via Stripe

Every invoice gets a Stripe payment link. Customers pay by card from their phone — no chasing bank transfers.

💬

Share on WhatsApp

Send invoices and quotes by WhatsApp, email, or PDF in one tap — the way your customers actually want them.

📄

Professional branded PDF

Clean, itemised PDFs with your business name, tax number, and logo. Look like the established business you are.

🌍

AU · US · UK · NZ · CA

Correct tax, currency, and invoice terminology for every country you work in. Set it once.

Why tradesmen pick Spanner

✓

Built for the job, not the desk

Most invoice software is desktop accounting with a phone app bolted on. Spanner is mobile-first — quote and invoice from the van, the workshop, or the customer's driveway.

✓

Get paid the same day

A Stripe payment link on every invoice means customers pay by card on the spot, instead of "I'll transfer it later" turning into a month of chasing.

✓

No accounting jargon

No chart of accounts, no setup wizard. Add your business name and tax number once and you're sending professional invoices in minutes.

✓

Free to start

Up to 5 invoices and quotes on the free plan with no time limit. Upgrade to Pro only when you want unlimited invoices, your logo, and no watermark.

How different trades invoice

Every trade bills a bit differently. Here is how the line items usually break down, and what changes between them.

⚡

Electricians

Electrical work is usually quoted before it starts and billed in three parts — attendance, time, and materials.

Typical invoice lines

  • • Callout / attendance fee
  • • Hourly labour, or a fixed price for the job
  • • Cable, conduit and fittings
  • • Switchboard and safety-switch components

Send the quote as a link the customer approves from their phone, so a switchboard upgrade is agreed in writing before you order parts. Approved quotes convert to an invoice without re-typing the lines.

Electrician invoice app
🚿

Plumbers

Plumbing splits between emergency callouts you invoice on the spot and planned work you quote first. Both fit the same line-item structure.

Typical invoice lines

  • • Callout fee, including after-hours rate
  • • Hourly labour
  • • Tapware, pipe and fittings
  • • Hot water units and larger parts

For a 2am burst pipe there is nothing to set up — open the app, add the lines, send it with a payment link before you pack the van. Photos of the blockage or the damage attach to the job.

Plumbing invoice app
🔧

Mechanics

Mechanics get vehicle fields the other trades do not need, because the car is the thing being billed against.

Typical invoice lines

  • • Rego, make, model and year on the invoice
  • • Labour hours at your shop rate
  • • Parts, oils and consumables
  • • Maintenance notes for the next visit

Vehicle details auto-fill from history on repeat customers, and service recommendations appear on the shared PDF so the customer remembers what is due next time.

Mechanic invoice app

From quote to paid in three steps

1

Quote the job

Itemise labour and materials. Send the quote by link — your customer approves online from any device.

2

Convert to invoice

Approved quote becomes an invoice in one tap. Share by WhatsApp, email, or PDF.

3

Get paid by card

Generate a Stripe payment link. Your customer taps and pays — you get notified instantly.

FAQ — best invoice app for tradesmen

What is the best invoice app for tradesmen?
For most tradesmen, Spanner is the best invoice app because it is built for how trades actually work — quote on site, send by WhatsApp or email, get paid by card, and have tax calculated automatically. It is free to download with up to 5 invoices and quotes on the free plan, and Pro is $9.99/month for unlimited invoices, your logo, and no watermark.
Is there a free invoice app for tradesmen?
Yes. Spanner is free to download and lets you create up to 5 invoices and quotes combined with no time limit. You can share by WhatsApp, email, or PDF and collect card payments on the free plan — no credit card needed to start.
Can I send quotes as well as invoices?
Yes. Send a quote your customer approves online from any device — no app needed for them. Once approved, convert it to an invoice in one tap and the line items carry across.
Can my customers pay by card?
Yes. Every invoice can generate a Stripe payment link. Your customer taps and pays by card from their phone, and you are notified the moment it clears — no more chasing bank transfers.
Does it calculate tax automatically?
Yes. GST (AU/NZ), VAT (UK), HST/GST (CA), and Sales Tax (US) are calculated automatically. Set your rate once in business settings and it appears correctly on every invoice.
Which trades is it built for?
Spanner works for any tradesman — mechanics, plumbers, electricians, builders, carpenters, landscapers, handymen, and more. Mechanics also get vehicle fields (rego, make, model, year) tracked per customer.
Does it work on iPhone and Android?
Yes. Spanner runs on both iOS and Android, and works in Australia, New Zealand, the UK, the US, and Canada with the correct tax, currency, and invoice terminology for each.
Is Spanner a good invoice app for electricians?
Yes. Electricians typically bill a callout fee, hourly labour, and materials such as cable, fittings and switchboard components — each goes on its own line with its own quantity and rate. Send the quote for online approval before you start, then convert it to an invoice in one tap when the work is signed off.
Is there a plumbing invoice app that handles callout fees?
Yes. Add a callout line, an hourly labour line, and separate lines for parts like tapware, pipe, fittings or a hot water unit. Tax is calculated across all of them automatically, and you can attach a card payment link so the customer pays before you leave.
What should a tradesman invoice include?
Your business name and tax number (ABN, VAT or equivalent), the customer details, a dated itemised breakdown of labour and materials, tax shown separately, the total due and your payment terms. Licensed trades such as electricians and plumbers are also generally expected to show their licence or registration number.

Explore more

🔨

Contractor Invoice Software

Quotes, labour + materials, and card payments for contractors.
🔧

For Mechanics

Vehicle fields, service history, and card payments for mechanics.
⚡

Electrician Invoice App

Quote on site, itemise labour and materials, get paid on the spot.
🚿

Plumbing Invoice App

Callout, labour and parts on one invoice, sent from the van.
🆓

Free Invoice App

Everything you can do on the free plan — no credit card needed.
📖

Best Invoice Apps for Tradesmen 2026

A side-by-side comparison guide — read before you choose.

Invoice your next job today

Free to download. No credit card needed. Built for tradesmen.

Download on the App Store Get it on Google Play