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.
Free to download · Up to 5 invoices & quotes free · No credit card
Which tradesmen is Spanner for?
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.
From quote to paid in three steps
Quote the job
Itemise labour and materials. Send the quote by link — your customer approves online from any device.
Convert to invoice
Approved quote becomes an invoice in one tap. Share by WhatsApp, email, or PDF.
Get paid by card
Generate a Stripe payment link. Your customer taps and pays — you get notified instantly.
What tradesmen say
"I quote on site, the customer approves on their phone, and I invoice the same day. No more paperwork at night."
Dave K. · Perth, AU
"Itemising labour and materials makes my quotes look professional. I win more jobs now."
Tom B. · Leeds, UK
"Customers pay the Stripe link before I leave the site. Cash flow has never been better."
Carlos M. · Austin, US
FAQ — best invoice app for tradesmen
What is the best invoice app for tradesmen?
Is there a free invoice app for tradesmen?
Can I send quotes as well as invoices?
Can my customers pay by card?
Does it calculate tax automatically?
Which trades is it built for?
Does it work on iPhone and Android?
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Invoice your next job today
Free to download. No credit card needed. Built for tradesmen.