About

Built by someone who
refused to connect his own accounts.

DueBell exists because of a specific, slightly stubborn moment: needing a tool to chase unpaid invoices, finding several good ones, and refusing every single one because they all began by asking for a window into the business. This page explains what came out of that, and what it costs us to hold the line.

How it started

The problem

Twenty years of watching invoices sit

Two decades in B2B sales and lead generation, plus running an agency, means having sent a great many invoices — and having chased a great many of them badly. Not because chasing is hard, but because it is the task that always loses to actual work.

The refusal

Every tool wanted the keys first

Connect your accounting software. Link your bank. Grant read access. Each request was reasonable on its own, and each one was a window into a business that had no reason to be open. So the tools went unused and the spreadsheets stayed.

The constraint

What if the tool asked for almost nothing?

Two files instead of two integrations: the invoices you already have, and a statement you export yourself. Slower to set up by about forty seconds a week. In exchange, nothing standing open between the software and your money.

Now

A product built backwards from that

Everything else followed from the constraint. No bank feed meant matching from a file. Matching from a file meant a freshness guard. Minimum data meant a client is a name and a way to reach them. The limitation turned out to be the design.

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Founder portrait — working environment, not a studio shot

Integrations required ●
0by design, not because we ran out of time
Principles

Four decisions we
won’t reverse.

Each one costs us something — a feature, a market, or a shortcut. They are listed with the cost, because a principle without a price is just marketing.

01

No connection to your bank

Not through open banking, not read-only, not through an aggregator. You export a statement and upload it, which means there is nothing standing open and nothing to revoke.

What it costs us: the smoothest onboarding in the category, and every customer who wants zero weekly effort.
02

The minimum data, and no more

A client is a name and one way to reach them. No tax IDs, no registered addresses, no formal records we do not need to send a reminder.

What it costs us: reporting features that would need richer client records, and easier expansion into accounting.
03

No AI at send time

A model helps you write templates once, on text you provide. What goes out is static, approved wording rotated across three variants — nothing generated in the moment.

What it costs us: the ability to say “AI-powered” about the part everyone expects it to be.
04

Reminders, never collections

We message people in your name about invoices you issued. We do not buy debt, report anyone, add fees on our own initiative or threaten anything.

What it costs us: the higher-margin business that sits one step further down that road.
The team

Small, and honest about it.

You are not going to find a leadership page with eight photographs here. DueBell is built by one person with help from people he has worked with for years — and that is worth knowing before you trust it with anything.

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Working shot — desk, laptop, ordinary day, not a corporate portrait

Years in B2B sales & lead gen ▲
20+most of it invoicing on terms
Founder

Piotr Wolniewicz

Twenty years in B2B sales, lead generation and SEO, running a lead-gen agency alongside DueBell. The invoicing problem is not theoretical for him — it is the part of his own week that kept getting pushed to Sunday evening.

DueBell is operated by WEB ELEVATE LIMITED, a company registered in England and Wales. Development, support and the words on this website all pass through the same pair of hands, which is why replies come quickly and why the roadmap is short and specific.

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Boundaries

What DueBell
will never be.

Roadmaps are easy to write and easy to abandon. These are the directions we have already decided against, so you can plan around them.

Accounting software

We will not grow into bookkeeping, ledgers or tax filing. If you need those, use a proper accounting package — DueBell is designed to sit next to one, or next to none at all.

A collections agency

There is real money one step down that road and we are not walking it. The moment a tool starts reporting people, its reminders stop reading like yours.

An enterprise platform

Approval chains, SSO and procurement questionnaires would reshape the product around buyers who are not you. The person we build for answers their own email.

A data business

Your invoices will not be sold, shared with advertisers, or used to train anything. If that ever changed it would be announced before it happened, not discovered in a policy update.

How your data is handled Ask us anything
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