Every certificate.
One app. One subscription.
Eight BS 7671 certificates — EICR, EIC, Minor Works, EV charging and more — created and signed on site and sent before you get back in the van. PAT, fire and gas join the same app on the same subscription — instead of four apps, four logins and four separate bills.
iPhone · iPad · Works fully offline · No account required
The maths
Multi-trade firms are billed four times
The incumbent apps sell one trade each. Do electrical and PAT and fire and gas, and you buy four subscriptions that never share a customer record between them.
Buying it a trade at a time
annual, single user-
Electrical
iCertifi
£125.99
-
PAT Testing
PAT Test Pro
£120.99
-
Fire & Emergency
iCertifi Fire + Fire Safe
£179.98
-
Gas
GasCert
£149.99
Total every year
£576.95
Certably Complete
£149 / year
Every trade as it lands. Unlimited certificates. One customer list, one site history, one bill.
You keep
£427.95
per engineer, every year, once all four are in
Straight up: today Complete unlocks exactly what Electrical unlocks. PAT, fire and gas land in it at no extra cost, but until they do, £99 Electrical is the one that saves you money.
Only do electrical?
£99 / year
Still £26.99 a year less than the nearest equivalent. You are not subsidising trades you will never open.
Comparison uses list annual prices published by the respective vendors on 21 July 2026 for single-user plans. Certably prices are the live App Store prices. PAT, fire and gas are not in the app yet — the figure above is what Complete saves once they are.
What's included
Electrical today, four trades to come
Every certificate is built to the current British Standard, and a qualified engineer in that trade reviews the layouts — which is also why the other three trades are not in the app yet. Pick a trade to see exactly what ships and what does not.
Electrical
On the App StoreEight BS 7671 certificates — signed on site, on the App Store now.
- Electrical Installation Condition Report (EICR)
- Electrical Installation Certificate (EIC)
- Minor Electrical Installation Works Certificate
8 in the app · 1 to build
PAT Testing
Coming to CompleteAsset registers, retest intervals and pass labels that survive an audit.
- PAT Test Certificate
- Appliance Asset Register
- Failed Appliance Report
2 awaiting sign-off · 3 to build
Fire & Emergency
Coming to CompleteBS 5839-1 and BS 5266-1 certificates, plus extinguisher servicing.
- Fire Detection & Alarm System Certificate (BS 5839-1)
- Fire Alarm Design, Installation and Commissioning
- Fire Alarm Periodic Inspection & Servicing
6 awaiting sign-off
Gas
Coming to CompleteLandlord Gas Safety Records, service and warning notices.
- Landlord Gas Safety Record (CP12)
- Domestic Gas Service & Maintenance Record
- Gas Warning Notice / Warning Advice Notice
5 awaiting sign-off
How it's built
Made for a plant room with no signal
Genuinely offline
Everything happens on the device. Basements, rooftops, riser cupboards — the app does not care whether you have a bar of signal, and nothing queues up waiting to sync.
One customer, every trade
Test a board in January and the extinguishers in June, and it is the same site record. Addresses, contacts and history stop being retyped four times.
Checked before you send
Missing observations, out-of-range Zs, an unclassified defect — flagged on the device before the certificate reaches your client, not after.
Photograph the defect
Attach a photo to any observation and it prints on the report in a numbered appendix — what you saw, next to what you wrote.
The whole site in one PDF
Every certificate at an address, oldest first, behind a single cover sheet. Built for the landlord's file and for handing a site to another firm.
Copies never carry readings
Duplicate last year's certificate and the circuits and wording carry over — but every reading and signature starts blank. A copied test result is not a test result.
Photograph the board. Get the schedule.
Point the camera at a consumer unit and Certably reads the device markings, then proposes a circuit schedule for you to check before anything is created.
The photo never leaves your phone
Text recognition runs on the device, like everything else in the app. Nothing is uploaded, and it works in a basement with no signal.
It fills in construction, never readings
Device standard, curve, rating, RCD and description. Not a Zs, not an insulation figure, not a polarity confirmation. A photograph is not a test result.
Scanned circuits block issue until you confirm them
A misread 32 that should have been a 20 changes the maximum permitted Zs, so an unconfirmed device is never allowed to decide a pass. Scanned circuits are flagged on the schedule and the certificate will not issue until each one has been checked against the physical board.
You review the lot before anything is created
Misreadings it can spot, it corrects and flags. Ratings that are not real breaker sizes get dropped. Main switches and RCD incomers are left out. Then you accept, edit or bin the list.
Also in the app
Know which job you are on
Your diary already says where you are going and what for. Certably can read today's appointments and offer to start the certificate one of them describes, with the site and the client filled in. It reads your calendar on the device, never uploads it, and fills in identity only — never a test result.
Get asked back in five years
A certificate you issue today recommends the next one years out. Certably puts that date in your own calendar, and shows you what is coming due with a message to the client ready to send from your own phone. The re-inspection is the work; forgetting it is how you lose it.
Running a firm
Your QS should sign certificates they have actually read
Remote sign-off usually means the Qualified Supervisor pre-authorises a signature that then lands on certificates nobody reviewed. Certably gives them a real review queue instead: the finished certificate, then a signature or a rejection with notes.
The review queue is built server-side but is not in the shipped app yet. Firms reserve at today's price and nothing is charged until it is.
- A review queue, not a pre-authorised stamp
- A login for every engineer, revoked when they leave
- Audit trail of who signed what, and when
- Shared customers and site history across the firm
Free, right now
Calculators you don't need the app for
Browser-based, no sign-up, no email. Free permanently, whether or not you ever pay us a penny.
Max Zs calculator
Maximum permitted earth fault loop impedance for Type B, C and D devices, with the 80% figure for measured values.
Open calculator →
Ring final R1+R2
Predict the expected R1+R2 on a ring final before you test it, from cable size and ring length.
Open calculator →
PAT retest interval
Risk-based retest intervals following the IET Code of Practice 5th Edition.
Open calculator →
Available now
Certify the next one from your phone
Certably is on the App Store. Download it, build a certificate and read the finished PDF before you pay anything — a subscription is what lets you issue it and send it to the client.
iPhone · iPad · iOS 18.0 or later · Works fully offline