PAT testing software

PAT testing
without the clipboard.

Appliance by appliance on your phone, results in as you go, and a branded PAT report PDF at the end — saved against the customer.

Starter free for 7 days, then £5 a month · Pro £10 a month, unlimited certificates · nothing to install

Certio Software Ltd · registered with the ICO BS 7671 A4:2026 model-form certificates UK-hosted data · works offline on site
What Certio does on this form

The typing, done for you. The judgement, still yours.

In-service inspection and testing of electrical equipment. Certio records the results and produces the report; the testing and the judgement stay yours.

📋

Every appliance on the report

Each appliance you test goes on the certificate with its result — no clipboard, no typing it up later.

Results on the phone

Pass or fail, the readings and a note, appliance by appliance, as you test.

📄

The PAT report

A branded PDF report with your logo and signature, sent to the customer from the app.

📤

Send it

On Pro, the report is released when the invoice is paid.

💷

Invoice from the same job

On Pro, invoice and chase it from the same screen.

🔁

Saved against the customer

Every PAT report is kept on the customer, so last year's is easy to find when the retest comes round.

It never guesses a reading. The AI only transcribes what it can actually read — from your photo of the board, your tester's screen or your dictation. Where it infers something that isn't printed in front of it, the field is flagged as an assumption for you to confirm. Blank stays blank until you fill it. You are the competent person signing, exactly as on paper.
On site

How it goes on the job

1
Open the site

Customer and site details are already on the job.

2
Test appliance by appliance

Add each appliance as you test it; the result goes straight onto the report.

3
Finish the report

Check it, sign it on the phone.

4
Send and invoice

PDF to the customer, invoice from the same job.

Pricing

Starter £5 a month, free for 7 days. Pro £10 with unlimited certificates.

Pro and Business are billed from day one — no contract, cancel any time. Pro adds priced quotes from a drawing, invoicing with CIS and reverse charge, receipts and the chase — the whole job, not just the form.

See pricing →
Switching?
We migrate your existing certificates, customers and invoices free. How it works →
Also in Certio

The other forms you'll need

On the way, not in there yet:

EV charger installation certificatesSolar & battery certificatesFire alarm & emergency lightingPAT labels & asset registers
Straight answers

Questions

Does Certio print PAT labels or keep an asset register?
Not yet — PAT labels and a proper asset register are both on the way. The PAT certificate, with each appliance's result, is in Certio today.
Is PAT included on the Starter plan?
Yes. EICR, EIC, Minor Works and PAT are on every plan, from £5 a month.
Does it work with no signal on site?
Yes. Certificates, jobs, photos, quotes and invoices live on your phone, so a plant room with no bars doesn't stop you working. Everything syncs when you're back on signal. AI features that need the internet — reading a board photo or a tester's screen — queue up and run as soon as you reconnect.
Can I use it on a laptop?
Yes. The same login works in any web browser at certio.uk, so you can finish a certificate at the desk that you started on site. iPhone users use the web version today; the App Store build is with Apple.
Is the certificate branded as mine?
Yes. Your logo, business details and scheme registration go on every PDF, and you sign on the phone. The customer gets your certificate, not ours.
Try it on your next job

Down tools at 5. The paperwork's already done.

Starter is free for 7 days, then £5 a month. Pro is £10 a month with unlimited certificates, billed from day one. No contract, cancel in two taps.

Try Starter free for 7 days →

Nothing to install — works in your browser. Or go straight to Pro at £10 a month.