ServicesCustom business applicationMargin, projects, teams, invoices: software that is yours.AI and automationReminders, reports, website enquiries: handled without a second thought.Dashboard and business reportingRevenue, margin, unpaid invoices, every morning.Website and application packageBoth designed together and connected.Website designBuilt to be found and to bring in enquiries.Website redesignRebuilt without losing your search rankings.SEO (search engine optimisation)Climb the searches for your trade.All our servicesEverything we offer.
IndustriesConstruction & ArchitectureArchitects, engineering consultancies, constructionHVACRefrigeration, HVAC, heat pumps, solarTransport & mobilityTaxi, private hire, removals, freightResellers & installersTills, kiosks, payments, securityConsulting & CoachingConsultants, coaches, agenciesTraining & PublishingTrainers, online course creatorsTech & B2B SaaSStart-ups, software publishers, industryFranchise networksFranchisors, multi-unit franchisees
Our workPricing
ResourcesWhat a website costs in 2026The budget guide, item by item.Writing your project briefThe simple 7-point template.Choosing the right web agencyThe right questions to ask.All resourcesGuides, glossary and blog.Redesign: where to startThe steps, in the right order.WordPress, Webflow or FramerAn honest comparison of the three tools.The web glossaryTerms explained without jargon.The blogAll our articles.
ToolsA real audit of your websiteA score out of 100 and fixes, in 30 seconds.Competitor comparisonYour website against two competitors, criterion by criterion.Budget calculatorA detailed estimate, line by line.Project briefA document ready to send to suppliers.The cost of your organisationTime lost each year, costed in six questions.
About
FREN
Book a call
Book a call
Our work About Blog Book a call
Custom business application service

The software that runs your business.

Quotes, scheduling, projects, invoicing: software built around the way you work, and it belongs to you. Not one more tool, a tool to run your business.

★★★★★ 4.8/5 on Google · more than 100 projects delivered

Key figures01 / 04
4.8/5average rating from our clients on Google
+100projects delivered, websites and applications
10 yearsof experience in web design and development
14 daysto launch a showcase website

Your processes deserve better than double entry

Good tools make good teams. When yours doesn't exist off the shelf, we build it: no bloated system, no throwaway prototype.

  • Missing or patched-together tool
  • Bloated system
  • Throwaway prototype
  • Dependence on the developer
Sound familiar?

What is holding you back today

If you are here, one of these situations probably rings a bell.

You find out your margin at year-end.

Revenue, margin, which projects pay and which do not: you learn it once a year, when it is too late to fix.

Your information is scattered everywhere.

Emails, spreadsheets, notebooks, phone: everyone has their own version, and nobody knows which one is up to date.

Nothing moves when you are not there.

Every question ends up on your phone, even in the evening and at weekends.

Your website brings you no enquiries.

Visitors come by, nobody gets in touch. The site exists, but it does not sell.

What your software does

Modules built around your real problems. The screens shown are examples.

01 · Custom business application

Project and margin tracking

Where each job stands, what it has cost and what it really brings in, without asking anyone.

  • Progress
  • Documents
  • Actual margin
02 · Custom business application

Quotes, follow-ups and sales tracking

Your quotes produced and sent from here. Anything awaiting a reply is followed up on the right date.

  • Quotes in a few clicks
  • Follow-ups
  • Signature rate
03 · Custom business application

Team scheduling and hours

Who is where, who is doing what, and time spent entered on the phone then approved at the office.

  • Schedule
  • Mobile time tracking
  • Approval
04 · Custom business application

Customer portal

Your customers follow their file, sign and download their documents without calling you.

  • Online tracking
  • Signature
  • Documents
05 · Custom business application

Business reporting dashboard

Revenue, margin, unpaid invoices: the overview every morning, included in every package.

  • Indicators
  • Unpaid invoices
  • Every morning

A single point of contact, from the first mock-up to go-live.

Pricing

What your software costs

A setup fee paid once, then a subscription covering hosting, fixes and improvements. No per-user pricing.

Essential

The core and 2 modules

from€4,900

+ €290/month

  • 2 modules of your choice
  • Dashboard and business reporting
  • Unlimited accounts

Advanced

The core, 4 modules and 1 automation

from€7,900

+ €390/month

  • 4 modules of your choice
  • 1 automation included
  • Dashboard and business reporting

Custom

6 modules or more, integrations, client portal

from€11,900

+ €490/month

  • 6 modules or more
  • Integrations with your tools
  • Client portal
Build my priceLet's talk about your project

Starting prices. VAT not applicable, article 293 B of the French General Tax Code (CGI). The exact price is set in writing before any development, and it does not change afterwards.

Details that make the difference

What we do that others don't

What you often seeWith Widesign

The quote that doubles along the way

A clear scope and a fixed price

The bloated system nobody uses

A sound foundation, designed to evolve

The throwaway prototype to redo in two years

Mock-ups approved before a single line of code

The provider you can't reach after delivery

A single point of contact, from brief to delivery

The tool designed without its users

Users involved from the mock-up stage

Lifelong dependence on the developer

Everything belongs to you: code, access, documentation

Your web application in six steps

A custom business application is built from the way you actually work. Screens, rules and integrations are approved by you before they are developed.

Step 01

The discovery call

We map your process, the files and tools you juggle between, and where they get stuck, in thirty minutes with no commitment. If off-the-shelf software is enough, we tell you.

Step 02

The functional scoping session

User roles, screens, business rules, integrations: the full scope of the first version is written down, then costed. You know the application that will be delivered before you sign.

Step 03

Screen mock-ups

Dashboard, records, forms: each screen is mocked up and shown to the people who will use it. Coding only starts once you have approved these mock-ups.

Step 04

Development in batches

We build the application module by module, on a sound technical foundation. You test each batch in a staging environment and approve it before the next one.

Step 05

Going into production

We bring over your existing data, put the application into production and test it with you. Your teams are trained, role by role, in using it day to day.

Step 06

Follow-up and updates

Your process changes, and so does the application. We handle maintenance, fix what needs fixing and add the features for the next version when you decide on them.

Honest advice

Is a custom application the right choice?

Not always. Here is how to decide honestly.

It is the right choice if
  • Your process doesn't fit any softwareYou juggle spreadsheets and tools that don't talk to each other.
  • Several people re-key the same informationA shared tool eliminates double entry.
  • Your business is going to growA tool of your own grows with it.
It is not the right choice if
  • Off-the-shelf software already does the jobUse it, we will tell you so.
  • Nobody in your business will be able to approve the mock-upsWithout feedback, the tool won't be adopted.

In those cases, we will tell you on the first call.

Screen of the prospecting software
Our in-house tool

A prospecting CRM, built for ourselves

The software we use every day at Widesign.

Contacts, follow-ups, quotes and invoices lived in five different tools. We built our own software to bring them together.

See how it works
We can hear you from here.

A custom business application, step by step

The scoping session sets the scope and the timetable: we develop in short, demonstrable stages, for a useful first version quickly, and a fixed price from the start.

If existing software covers your needs, it will often be cheaper, and we will tell you during scoping. Custom software is justified when you spend your time working around the tool, duplicating entries in spreadsheets, or when the way you work is what sets you apart.

In most cases, yes, if your tools offer an API or a usable export: accounting, CRM, calendar, email. We check this during scoping, tool by tool, before promising you a connection.

That is the main risk with in-house software, more than the technical side. The screens are designed with the people who will use them, tested as mock-ups before development, and the first version is deliberately kept simple so it becomes part of daily habits before it grows.

The application is designed for that: documented code, structured so screens or rules can be added without starting over. Each change is costed separately before it starts, and you remain free to give it to us or to another team.

4.8 Average rating on

Your business deserves better tools

Thirty minutes to scope your needs, website or application, and come away with a clear plan.

Book my call