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Custom software

The tool that replaces your patched-together spreadsheet and your lost hours

Every business has that spreadsheet that's become unmanageable, that process repeated by hand every week, that task everyone dreads. We build custom business tools — automation, AI agents, integrations with your existing software — to reclaim those lost hours and turn them into useful time, without upending your team's habits.

  • Automation of time-consuming repetitive tasks
  • Integration with your existing tools (CRM, ERP, API)
  • The code and the data belong to you

The problem

What patched-together processes cost you

A spreadsheet that's become critical, or a task repeated by hand, aren't just details: they're hours and risks piling up every week.

Our answer

A tool built for your real process

Every tool we deliver starts from your process as it actually exists, not from a generic template you have to force your workflow into.

  • Automation of repetitive tasks

    Manual, repetitive tasks are automated: report generation, email sending, file processing. What used to take hours triggers in seconds.

  • Custom AI agents

    For tasks that require judgment — sorting, summarizing, drafting a first version, answering common questions — we integrate AI agents connected to your data.

  • Integrations with your existing tools

    CRM, ERP, accounting, business APIs: your new tool communicates with what you already use, without forcing you to change everything overnight.

  • Interface designed for your teams

    A tool your teams use without three days of training. Simple, fast, designed for the real process, not to impress in a screenshot.

  • Full ownership of code and data

    Unlike a generic SaaS subscription, the code belongs to you. No dependency on a third-party vendor that raises its prices or shuts down its service.

  • Scales with your business

    The tool grows with your needs: new features, new users, new integrations added over time, without starting from zero at every evolution.

Preview

The level of craft, live

The site you're browsing right now is built with the same rigor as our business tools: a simple interface hiding solid engineering underneath.

Écran des paramètres généraux : gasoil, accise, taxe kilométrique, charges patronales, avec un panneau de contrôle de cohérence
Tableau de saisie de la flotte : financement, assurances, salaire, consommation et kilométrage par véhicule
Coût de revient détaillé par véhicule, coûts fixes et variables ventilés poste par poste
Simulateur de mission affichant coût, marge et prix plancher, comparés à l’ancienne formule de calcul
Synthèse de la flotte et comparatif des véhicules sur douze indicateurs
Page des sources et de la méthodologie, avec les références officielles et les limites assumées
Paramètres — écran 1 sur 6

Process

From call to launch in 4 steps

  1. 01

    Discovery

    A workshop to map your current process, identify tasks to automate and tools to connect. Firm quote within 48h.

  2. 02

    Design

    Interface mockup and validation of how it works with the tool's future users. Two rounds of revisions included.

  3. 03

    Development

    Tool development, automation and integration setup, testing with your real data. Tracked on a demo environment.

  4. 04

    Launch & follow-up

    Production deployment, team training, adjustments based on first real-world use. Then 30 days of included bug-fix warranty.

Budget

How much does a custom business tool cost?

A firm price after scoping. The range depends on the number of processes to automate, required integrations, and the complexity of business rules.

from

€2,400

Prices exclude VAT. Custom business tool, automation and integrations included. Free detailed quote within 48h.

  • Mapping of the existing process
  • Custom development of the tool
  • Integrations with your existing software
  • Automation and AI agents where relevant
  • 30 days of included bug-fix warranty
Get a free quote

FAQ

Your questions about custom business tools

A targeted business tool, automating one or two specific processes, starts at €2,400 excl. VAT. A broader tool, covering several teams with multiple integrations and advanced automation, generally falls between €4,200 and €11,000. The firm quote is delivered within 48h after mapping your process.

It depends on the process automated, but our clients typically see several hours saved per week and per person involved, from the very first automation of a repetitive task. We calculate this during scoping: we estimate the time currently lost to assess whether the investment pays off quickly.

A custom AI agent is a program connected to your data that carries out a task normally requiring human judgment: sorting emails, summarizing documents, answering common questions, drafting a first version of content. It's configured around your real processes, not a generic use case.

Yes, that's often the main appeal of these tools. We connect your new tool to the software you already use — CRM, ERP, accounting, specific business tools — via their APIs, to avoid manual re-entry and keep a single reliable source of information in your company.

Rarely. The goal is generally to connect and automate around your existing tools, not to replace them entirely. A full replacement is only justified if the current software has truly become a bottleneck. We always recommend the most cost-effective option that solves your real problem.

You do. The source code, documentation and all data remain entirely your property, hosted wherever you want. That's a fundamental difference from a subscription to off-the-shelf software: no dependency on a third-party vendor, no risk of forced price increases or service shutdowns.

Our commitments, in writing

  • Quote within 48h

    A detailed, firm estimate — not a vague range.

  • Code delivered, code you own

    You walk away with the full Git repository. No hidden dependencies.

  • Maintenance covered

    Fixes, updates, and monitoring after launch.

  • Revisions included

    Every phase includes planned rounds of feedback in the quote.

How many hours are you losing every week to that spreadsheet?

Describe your current process: a detailed, firm quote within 48h, free.

Response within 24h