Pick the plan that fits your work.
Start free, with every safety check and your first job free to issue. Move up when your work needs more.
Free
Free permanently. Not a trial.
For apprentices learning the trade, and for any electrician who wants the safety checks on every job. Your first job is free to issue.
- Starter circuits: lighting, ring final, radial, cooker, shower, immersion, smoke and heat detection, outdoor and consumer unit layout
- The calculator hub: seven calculators, including cable sizing, voltage drop, Zs and “Which RCD do I need?”
- Every safety determination, in full
- The installation checklist, including safe isolation
- Live power-path validation and missing-component warnings
- Cable sizing, voltage drop, Zs, RCD and adiabatic
- Test results, checked against the design as you go
- Record an existing installation as found, and its EICR observations
- Calibration reminders from your own interval
- EIC, EICR and Minor Works certificates, signed and issued
- Test readings spoken or typed: a spoken reading is saved as you say it, with the words heard shown, and can be edited or deleted
- Particulars for EV charging points and stationary batteries on the EIC
- A danger notice listing a job’s C1 dangers, as a PDF for the customer
- The G98 Form B, filled in from the job for you to send to the DNO
- Start a re-inspection from an issued EIC or EICR
- Consumer unit schedule on screen, way labels and notices
- Help, lessons, practice questions, glossary and symbol library
- PNG export and the share sheet
- Up to five saved jobs, circuits uncapped, your first job free to issue
- Ad-supported. Never on the drawing canvas, in a wizard, in the checklist, or beside a safety warning
Pro
£14.99 a month, or £139.99 a year (£11.67 a month, saving 22%). First month free.
For electricians who quote and certify every week: unlimited jobs, priced quotes including remedial works, invoices for any job, and your branding on every document.
- Unlimited jobs
- Branded PDF export with your logo and scheme number
- SVG vector export
- Priced materials list, shopping list and job costing
- Your own prices for materials, replacing Ohmly's estimates
- Customer quote generation
- Invoices for any job
- EV charger, solar PV, battery and swimming pool wizards
- Heat pump, underfloor heating and sauna wizards
- No advertising
Pro+
£21.99 a month, or £199.99 a year (£16.67 a month, saving 24%). First month free.
For commercial, three-phase and specialist work, and for looking after landlords and repeat customers: inspection reminders, guided job workflows and CAD export.
- Everything in Pro
- Emergency lighting and fire alarm wizards
- Three-phase board design with phase balancing
- Motor circuit wizard
- Agricultural, caravan park and marina supplies
- Property history, landlord portfolios and EICR recall
- Job workflows for board changes, surveys and rewires
- Timed fault log for billing
- DXF export for CAD
- No advertising
Ohmly wants your work to be safe before it makes a penny from you. So nothing that keeps an installation safe sits behind a payment.
Free on every plan, for good: every safety determination, from AFDD and SPD to bonding, earthing, Zs and cable sizing; every warning; the live circuit check; the installation checklist with its safe isolation steps; test readings checked against your design; and the calculators, including “Which RCD do I need?”. The terms of service put that promise in writing.
So the paid plans are priced on the paperwork and the business side, never on the safety. You pay for your evenings back, not for permission to work safely.
You already know how to work this out.
A quote written by hand takes about half an hour, usually unpaid, at the end of the working day. At a UK sole trader’s effective rate of £40 to £75 an hour, that one quote costs you £20 to £37.50 of your time.
And most quotes do not win the job: 3 to 4 quotes for every job won. Spend less time on the ones that go elsewhere.
Your monthly Pro subscription, £14.99, costs less than 10-20 minutes of paid work for most qualified electricians: less than one quote done by hand.
Ohmly generates the quote from the job you set up by answering a few simple questions, and writes the certificate from the same job, so most of that half hour becomes a quick check and a send. And when you go back to the same house years later, the drawing is still on your phone.
For a UK sole trader, a tool subscription used for the business is ordinarily an allowable expense, just like your other tools. Your accountant can confirm it for your business.
Put in your own quotes, certificates and hourly rate, and see what the paperwork costs you each week and each month.
3 to 4 quotes for every job won: elec.training (2026).
Works alongside the tools you already use.
Your accounts software
Ohmly writes the quote and, on Pro, the invoices for any job. Your books and accounts stay in the software you already use for them.
Your wholesaler
Take the priced shopping list to the counter or order online, from whoever you already buy from.
Your scheme’s portal
Notify Part P work in your scheme’s portal as you do today, and Ohmly keeps the reference against the job.
Before you subscribe.
How much does Ohmly cost?
Free is £0, permanently. Pro is £14.99 a month or £139.99 a year. Pro+ is £21.99 a month or £199.99 a year. Pro and Pro+ start with the first month free, once per person: Google Play asks for a payment method, and charges the price when the month ends unless you cancel before then.
Subscriptions are charged through Google Play in pounds sterling, and Google shows the final amount, including any tax, before you confirm. Outside the UK, Google converts to your local currency, and the figure Google shows you at the point of purchase is the one that governs.
Does the free plan expire?
No, and there is no countdown. Free is permanent, not a trial. Every safety check is on it, and your first job’s EIC, EICR and Minor Works certificates are free to issue when it uses the starter circuits. Pro adds unlimited jobs, quotes, priced materials, and the certificates for jobs that use its specialist wizards.
Why are the safety checks free?
Because Ohmly wants your work to be safe before it makes a penny from you, so nothing that keeps an installation safe sits behind a payment. The terms of service put that promise in writing.
What happens to my work if I cancel?
You drop back to the free plan. Your jobs, drawings and issued certificates stay on your phone, and you can still open everything; exporting work that used paid features needs an active subscription. The free plan’s limits then apply to new work.
Is there an apprentice or student price?
Not at launch, because what an apprentice needs most is already free to everyone: the lessons and practice questions, the glossary, the symbol library, the safe isolation reference, the calculators and the starter circuit wizards.
Can I pay annually?
Yes. Monthly and annual are both offered through Google Play, and annual works out cheaper per month.
Do I need an account?
No. There is no Ohmly account and no sign-up. Your subscription is attached to your Google Play account, which you already have if you installed the app.
Is there advertising?
Only on the free plan, and never while you are working: not on the drawing, in a wizard, in the checklist or beside a safety warning. You see a strip on the home screen, and a full screen when you close a job or share an exported drawing. Pro and Pro+ have none.
Is it a business expense?
For a UK sole trader, a tool subscription used for the business is ordinarily an allowable expense, just like your other tools. Your accountant can confirm it for your business.
Your time is the expensive part. Save it with Ohmly.
Start on a real job and issue your first job's certificates free. There is nothing to sign up for.