Invoicer, a product of GK Tools
Finally, invoicing software that’s actually easy to use
Made for elderly and senior tradespeople. Large fonts, big buttons and no confusing menus. Just straightforward invoicing that works.
Try 3 Months FreeNo credit card required, no confusing setup, and you can cancel any time.
Why elderly tradespeople choose Invoicer
Invoicer was built for people who want to send an invoice and get on with their day. Large text, big buttons and plain English throughout, with no tech degree required.
Large, readable fonts
Body text is 18px as standard, headings and totals are bigger again, and even the fine print never drops below 18px. No squinting at tiny text on any screen.
Big, easy-to-press buttons
All buttons are a minimum of 48px tall, which suits older hands and touchscreens. No more missing the button you wanted.
Clear, simple layout
No cluttered menus or hidden features. Everything you need is right there on your dashboard, clearly labelled.
Saves your details for you
Your business details and your client records save themselves as you type, with a little marker telling you it’s saved. No hunting for a “Save” button.
Works on any device
Use it on your home computer, a tablet at a job site or the phone in the van. The large buttons and fonts work on all screens, and your data stays in step on every one.
No complicated features
We don’t overwhelm you with features you’ll never use. Just the essentials: clients, invoices, done.
Made for older tradespeople who
- Don’t want a manualSomething you can pick up without a manual or a training video
- Find small print hardSmall fonts and tiny buttons are a struggle
- Just want to send invoicesNo need for fancy features
- Like plain instructionsClear, straightforward instructions, every time
- Want it to just workSoftware that works without a learning curve
- Work on their ownA one-person trade business: plumber, electrician, gardener and the like
Let someone you trust give you a hand
Plenty of people would rather their daughter, son or bookkeeper did the invoicing. Invoicer has a Helpers page built for exactly that, and it doesn’t involve handing over your login.
- Nothing to share. Invoicer has no passwords at all: you log in with a code sent to you. Your helper signs in with their own account and switches into yours.
- You hand over an 8-digit code. Press “Invite a helper” and a code appears on screen for you to read out or pass on. It works once and expires after 30 minutes.
- They can do the lot. Invoices, quotes, clients and your insurance certificates. The whole account, so you never have to be the one at the computer.
- You stay in charge. Remove a helper whenever you like and their access stops the next time they try to use it. You get an email when a helper joins or is removed.
- Helping costs nothing. Your helper doesn’t need their own subscription to look after your account.
What you get with Invoicer
- Professional invoices. Your logo, business details and payment info on every invoice. It looks professional without you needing to be a designer.
- Sums done for you. VAT is worked out for you if you’re VAT registered. No more worrying about getting the maths wrong.
- See what’s paid. See at a glance which invoices are paid and which are still outstanding. No spreadsheets needed.
- Insurance certificates kept safe. Upload your public liability insurance once. Tick a box when you’re sending an invoice and the certificate goes out with it, or send it straight to a client from their record when they ask.
- UK-based support. Real people in the UK who understand UK trades. Email us and get helpful answers in plain English.
Sending an invoice takes 3 simple steps
No hidden menus, no training videos and no thick manuals. It just makes sense.
Add your client once
Type in their name, email and address. That’s it. Invoicer saves it so you never have to enter it again.
Fill in what you did and how much
Describe the work and enter the amount. Add more lines if you need them. Everything is clearly labelled, so there’s no guessing.
Use the “Send Invoice” button
That’s it. We email a professional PDF invoice to your client. They get it straight away, and you’re done.
Common questions from older tradespeople
- Do I need to be "good with computers"?
- Not at all. If you can send an email, you can use Invoicer. We've deliberately kept it simple - no tech skills needed. And if you'd rather someone else did it, you can add them as a helper.
- Can my daughter or son do the invoicing for me?
- Yes, and without you giving away any login details. Open the Helpers page, press "Invite a helper" and read them the 8-digit code that appears. They type it into their own Invoicer account and can then switch into yours and run everything - invoices, quotes, clients, insurance certificates. The code works once and expires after 30 minutes, you're emailed when someone joins or is removed, and removing a helper cuts their access off immediately. It costs them nothing to help you.
- What if I get stuck?
- Email us at support@invoicer.gk.tools. We're a small UK company and we actually read and respond to every email. We'll help you sort it out in plain English.
- Can I print invoices instead of emailing them?
- Yes! You can download each invoice as a PDF and print it. Some clients prefer paper invoices - we get it.
- Will it work on my tablet?
- Absolutely. It works well on tablets, especially with the large buttons - a tablet is often the easiest way to use it if you'd rather not squint at a phone.
- What if I only send a few invoices each month?
- That's fine! Whether you send 1 invoice or 100, the price stays the same. No per-invoice fees or hidden charges.
- Is my data safe?
- Yes. We use bank-level encryption and store everything on secure UK servers. We'll never sell your data - that's a promise.
Simple pricing for small trades
Switch plans whenever you like, and cancel with no questions asked.
Unlimited customers and invoices on both. Cancel any time from your account.
Pay as you go. Stop whenever you like.
Works out at £8.33 a month, £20 less than paying monthly.
The first 3 months are free, and no card is needed to start.
Start your free trialNot your trade?
Invoicer is set up just as well for gardeners and landscapers, electricians, plumbers and heating engineers, builders, sole traders, members of trade schemes and anyone invoicing from a phone.
Add a client, describe the work, press send
That’s the whole job. No complicated setup and no risk.
Try 3 Months FreeNo card needed. Works on any phone, tablet or computer.