Why we said no to becoming a full accounting suite
Last spring, a customer emailed us. He was a plumber in Manchester who'd been using Invoicr for three months. He asked if we could add expense tracking, profit and loss reports, and quarterly tax breakdowns. His accountant had recommended it. We said no, and it was one of the best decisions we've made.
The moment we almost became something else
That email sparked a conversation inside MRVL that lasted two weeks. We had a roadmap meeting. We sketched out what a full accounting suite might look like. Someone made a spreadsheet comparing us to Xero, FreshBooks, Wave. We could do it. We had the team. We had the time.
But then we stopped and asked ourselves a question: who are we actually building for?
The answer wasn't "anyone who needs business software." It was specific. UK sole traders and tradespeople. Plumbers, electricians, gardeners, handymen, mobile mechanics, tilers, decorators, cleaners. People who spend their day on job sites, not in spreadsheets. People who need to send an invoice from their phone, get paid fast, and move on to the next job.
Those people don't need an accounting suite. They need an invoicing app that works.
The thing that actually matters to a plumber
Our customers are not data analysts. They don't sit down to spreadsheets at the end of the month with a cup of tea and a calculator. They check their phone between jobs.
When we built Invoicr, we spent months understanding their friction. Not the friction of "how do I track my expenses across multiple profit centres?" but the friction of "why does my client's bank transfer take three days?" and "how much does it cost me when someone pays by card?"
That's why the core feature of Invoicr is bank-to-bank payment via UK open banking. On a £500 invoice, you pay around £4 instead of £12.50 with a card processor. That's not a nice-to-have. That's money in your pocket. That's the difference between making a job worthwhile and not.
An accountant needs a profit and loss report. A plumber needs to know they're not bleeding money to payment fees. We chose to be brilliant at the second thing instead of adequate at everything.
Why adding expense tracking would have broken us
Feature creep doesn't feel like a problem at first. It feels like momentum. It feels like listening to customers. One person asks for expense tracking. Another asks for tax estimates. Another wants bank feeds and reconciliation. All reasonable. All things an accountant would build.
But each feature adds weight. You add expense categories, and suddenly you need guidance on what goes where. You add tax estimates, and now you're responsible for accuracy. You add bank feeds, and you're managing bank connections, error handling, third-party dependencies.
You stop being the app that works on a phone. You become software that works on a phone, which is different.
We've seen this pattern. Apps start with a clear purpose. They do one thing brilliantly. Then they try to do two things. Then five. Then they're trying to compete with enterprise software, and they're not good at any of it.
We decided early that if a customer needs full accounting, we'd recommend they use tools built for that. We'd make sure our Pro and Business tiers export data so they can hand it to an accountant or import it into proper accounting software. We'd be the front door, not the whole house.
What saying no actually gave us
Constraints are gifts. We've built Invoicr for mobile. Genuinely mobile. iOS native. The interface is designed for someone standing on a driveway, phone in one hand, clipboard in the other. Not someone hunched over a laptop.
We've added features that matter to this audience. WhatsApp invoice delivery. Automated payment reminders without being obnoxious. Quote templates so you can estimate jobs on the spot. A client portal where your customers can view invoices and pay securely.
We've kept the pricing simple and free. The Free tier covers 5 invoices a month and 3 customers. That's real value for someone just starting out. No artificial limits designed to annoy you into upgrading.
And we've stayed obsessed with the thing that makes Invoicr different: bank-to-bank payments. That's not a feature in an accounting suite. That's the feature.
What we built instead of being everything
We built something that works. Something you can use on site. Something that saves you money on every payment. Something your accountant can work with instead of something that tries to replace them.
We built something that doesn't try to be Xero for plumbers. It's Invoicr. It does one job, and it does it in a way that makes sense for the work you do.
That customer in Manchester? We sent him a thoughtful email explaining why we couldn't add accounting features, but we did send him a direct link to our Business tier, which includes accountant export for VAT and CIS compliance. He understood. He's still using Invoicr.
The question we still ask ourselves is not "what feature should we add next?" but "who are we saying no to today, and why?" The answer to that second question is what keeps us sharp.
Ready to try Invoicr by MRVL?
One tap to download. No sign-up wall.