Custom business software: why 5,000 euros is often enough
A small business does not wake up thinking it needs a "digital transformation program".
It wakes up with three conflicting Excel files, one missing email, the same data typed five times, and someone losing two hours a day connecting tools that were never designed to work together.
That is the real problem custom business software should solve.
Not "building a platform". Not "launching an innovative solution". Not "digitizing processes" with words that already cost 12,000 euros before a single useful screen exists.
Just removing one stone from the team's shoe.
The lie behind big software projects
I used to run a custom software agency that delivered projects for companies like Doctolib, SNCF, Thales and Accor. We signed more than 15 million euros in contracts.
So I know how software quotes inflate.
A client arrives with a simple problem: "my team wastes time copying data".
Three weeks later, they receive a quote with strategic workshops, business analysis, target architecture, project governance, steering committees, UX research, design systems, sprint 0, sprint 1, sprint 2.
The original problem fitted in one sentence.
The quote ends at 42,000 euros.
And often, less than a quarter of that budget actually pays for the code that solves the problem.
The rest pays for the structure around it: management, margin, coordination, meetings, inertia.
What a small business actually needs
A company with 10 to 50 people usually does not need a software factory.
It needs one useful brick.
One page that replaces a spreadsheet.
One form that removes duplicate data entry.
One dashboard that finally shows the right information.
One internal interface that centralizes what used to disappear in Slack, Gmail or WhatsApp.
We see the same pattern again and again with clients: information exists somewhere, someone copies it somewhere else, it ends up in an email, then it disappears.
This is not an innovation problem.
It is an operational plumbing problem.
And operational plumbing should not cost 80,000 euros.
Why custom software makes sense again
For years, the default answer was: "just buy a SaaS".
But many small businesses end up paying 400 euros a month for a CRM used like Excel with a login screen.
400 euros a month is 4,800 euros a year.
Over three years, that is 14,400 euros for a tool that never truly fits the business.
A custom brick at 5,000 euros can be more profitable if it removes real copy-paste work, errors and internal follow-ups.
AI changed the economics.
Not because anyone can safely build anything with "vibe coding". That is often dangerous.
It changed the economics because a senior developer can move much faster on repetitive implementation work while keeping the technical judgment that prevents bad decisions.
Code is cheaper to produce.
So custom software becomes accessible again.
The 5000.dev model
At 5000.dev, we do not sell a vague large project.
We sell one brick.
5,000 euros excluding VAT.
2 weeks of development.
Delivered or refunded.
But the two weeks do not start in confusion.
Before that, we do the work that prevents surprises: understand the business, look at what the team does today, identify the data, constraints and integrations, then produce a clear spec page.
Then we mock up every page.
Once the client validates, the clock starts.
It is simple, but it is not improvised.
The right test before building
Before asking for a quote for custom business software, ask one question:
Which repeated action deserves to disappear every week?
Not "what application do we want to build?"
Not "what would the perfect tool look like?"
One action.
One copy-paste.
One duplicate entry.
One follow-up.
One information search.
One recurring error.
If that action already costs several hours a week to a team, there may be a real brick to build.
And if the first brick works, you build the next one.
No need to bet 200,000 euros on a complete platform.
You move brick by brick.
It is less impressive in a board meeting.
But it is much more useful inside a real company.
When 5000.dev is a good fit
5000.dev makes sense if you run a small business with a concrete operational problem: overflowing Excel files, manual processes, poorly adapted SaaS tools, scattered data, a team wasting time.
It is not for showcase websites.
It is not for e-commerce.
It is not for a still-vague "revolutionary app".
It is for turning a clear business problem into a usable web application.
In 2 weeks.
For 5,000 euros excluding VAT.
And if we do not deliver, we refund.
The real luxury today is not having a huge roadmap.
It is having a tool that removes useless work this month.
FAQ
How much does custom business software cost for a small business?
At 5000.dev, a first business brick costs 5,000 euros excluding VAT. The goal is not to sell a full platform upfront, but to ship one useful part that removes a real operational pain.
Can custom software replace Excel?
Yes, when Excel has become a makeshift business system: customer tracking, planning, quotes, production, follow-ups or scattered data. The right starting point is often one repeated action that should disappear.
Why build one brick instead of a large software project?
Because one brick validates value quickly. You reduce risk, get a usable tool in 2 weeks, then decide what comes next based on real usage.
Go further
- See the 5000.dev offer: [custom web application in 2 weeks](/)
- Read more articles: [5000.dev blog](/en/blog)
- Compare with classic approaches: [MVP development cost](/en/blog/mvp-development-cost-budget-timeline-tradeoffs)