All your jobs, paperwork and admin in one app. Built for Gas, Electrical, Renewables, Air-con, Oil Heating, CCTV & Security and more. All from your phone.
Approx. €12.75 / A$21.50 / NZ$23.75 a month, plus local tax. Final price shown at checkout.

Real Checker screen: heat pump record, step 3 of 13

Checker is used by engineers in the UK, Ireland, Australia and New Zealand.
Sole trader, growing team or multi-engineer firm. Checker fixes the bit that eats your evenings.
You finish the job, then spend the evening at the kitchen table writing up certificates and invoices. Customers forget their next service and ring someone else.
Certificates, records and reports done on site in about two minutes, invoice sent before you’ve packed the van, and annual reminders go out on their own so the work comes back to you.
Three engineers, three ways of doing things. Certificates in vans, photos on personal phones, and quotes nobody followed up because everyone assumed someone else would.
Everyone works from the same app. Files sync to every device, quotes get followed up automatically, and you can see the lot from the office on a laptop.
Hundreds of properties, audits to pass and a back office spending its week chasing engineers for certificates and customers for money.
Every certificate and report in one place, unpaid invoices chased in the background, and invoices flowing into QuickBooks, Xero or Sage. Priced per engineer, so it grows with you.
Engineers on phones and tablets. The office on the web. Every record, report, quote, invoice, job sheet and picture saved once and in step everywhere, from the one-man band to the multi-site maintenance firm.

Laptop and tablet screens are illustrations with example figures.
One app for the whole job, start to finish.
Filled in on site from your phone.

Sent in minutes, followed up for you.

Unpaid ones chased automatically.

Take payment there and then.

Customers told when the next one is due.

Swipe to see each step →
Checker chases quotes for you, so work doesn’t slip away.
Polite reminders go out in the background until you’re paid.
Automatic annual service reminders bring customers back.
Finish the paperwork before you leave the job.
Plans to suit sole traders and teams, with 30 days free first.
Approx. €12.75 / A$21.50 / NZ$23.75 a month, plus local tax. Final price shown at checkout.
No. You get 30 days of the full app free, with no card details asked for. If you decide to stay, you pick a plan and set up payment by Direct Debit.
Gas, electrical and renewables, air con and refrigeration, CCTV and security, and oil heating. Each trade gets its own certificates / reports and records, built for that line of work.
Yes. Checker is on the App Store and Google Play, and the office can use the full web app in any browser. Everything you do on one shows up on the others.
Yes. Certificates, reports, records, quotes and invoices are unlimited on every plan. No caps, no top ups, and no charge per certificate.
Yes. Add your engineers as sub users, priced per engineer, so you only pay for who’s on the tools. The office sees every engineer’s files in one place.
Yes, any device, any time. Start a report on your phone, finish it on a tablet, and the office sees it on the web app the moment it’s saved.
Yes. You could be servicing an air con unit in a nuclear bunker and Checker would still work. Everything saves on your device and syncs as soon as you’re back in signal.
Yes. The web app gives the office every customer, file, quote, invoice and service reminder on a desktop or laptop, plus dashboards for sales, repeat work and quote wins.
Yes. Invoices go into QuickBooks, Xero and Sage, so nobody types them in twice and your books stay up to date. Mark an invoice paid in Xero and it updates Checker automatically. 😉
Yes. On our PRO or PRO+ annual plans we can import your data from any existing software for free, as long as the data is available to export. Chat to us on WhatsApp and we can advise you better.
No card needed. Set up in minutes.
No waiting around on hold. Message us and a real person at Checker gets back to you, usually within 8 minutes.
Download the app now and get going.