The custom app
that replaces your workarounds

Managing your business with 12 spreadsheets, 3 SaaS tools and copy-paste ? We build the business app that centralizes everything — powered by AI.

Rails 8 — latest version ~2× faster than React + Node stack 100% proprietary code Deliverables every 2 weeks

Your business runs.
But your tools slow it down.

We see this with every SME and mid-market company we work with. The same frustrations, over and over.

Too many tools, no consistency

A CRM here, a spreadsheet there, Trello on top. Information is everywhere — so it's nowhere. Your teams waste time copy-pasting between tools.

SaaS locks you in

Your tool doesn't handle your specific use case. You pay for 80% of features you don't use, and it lacks the one that matters.

Manual tasks pile up

Duplicate entry, forgotten follow-ups, manual reporting… These are hours lost each week on tasks a well-designed tool would do in 2 seconds.

Apps that fit
your workflow

No template. No customized WordPress. A tool designed around your processes, your data, your teams.

ERP & management tools

Sales management, production tracking, logistics, HR… We model your business and build the tool that drives it. One place to see and do everything.

  • Real-time dashboard
  • Multi-user
  • Roles & permissions
  • PDF / Excel export

Custom CRM

No more generic 50-tab CRMs. We build exactly the pipeline, fields, automations, and follow-ups you need.

  • Custom pipeline
  • Auto follow-ups
  • Email integration
  • AI scoring

AI agents & MCP servers

Intelligent agents connected to your business data: sales assistant, document analyzer, task automation. All with the MCP protocol for standardized integration.

  • Claude API
  • Serveurs MCP
  • RAG sur vos docs
  • Actions autonomes

Client portals & extranets

A secure space for your clients, partners, or franchisees. Order tracking, shared documents, messaging, integrated billing.

  • Client area
  • Real-time notifications
  • Stripe payment
  • Open API

Ruby on Rails 8.
Proven, fast, maintainable.

The framework powering Shopify, GitHub, and Basecamp. We use it because it lets you deliver faster — and maintain easily for years. See our Rails agency page →

Why Rails and not React + Node?

A Rails developer delivers features significantly faster than with a JavaScript stack. Hotwire replaces the need for SPA for 80% of business apps, convention over configuration = less code, fewer bugs.

Stack used
Rails 8 + Hotwire (Turbo + Stimulus)
PostgreSQL · Solid Queue · Solid Cache
Kamal 2 (zero-downtime deployment)
Claude API + MCP Servers
RSpec + FactoryBot + Capybara

~2× faster to develop

One Rails developer delivers what takes 2 or 3 on a JS stack. Less code, same result. Your budget is better spent.

Built-in security

CSRF, XSS, SQL injection protection out of the box. Brakeman for automated auditing. Ruby 3.3 + YJIT: +30% performance without changing a line.

Shopify, GitHub, Basecamp run on Rails

$200 billion in annual transactions for Shopify. The framework has proven itself at every scale, from MVP to unicorn.

Zero-downtime deployment with Kamal

Simple hosting on your own server, no proprietary cloud lock-in. Controlled costs, migrations without downtime.

AI integrated into your tools.
Not beside. Inside.

We don't slap a chatbot widget on top. We integrate AI at the heart of your business processes via the MCP protocol — the universal standard for connecting AI to your data.

AI sales assistant

An agent that analyzes your leads, drafts proposals, and prioritizes your pipeline automatically.

Document analyzer

Import invoices, orders, contracts — AI extracts data and sorts it into your ERP without manual work.

Intelligent reporting

Ask a question in plain language, get a chart. "Which client ordered the most this quarter?" — answered in 2 seconds.

MCP automation

Your third-party tools (Slack, email, ERP, accounting) connected via MCP protocol. An AI agent orchestrates everything — securely and standardized.

Context model on your data

The MCP server exposes your database to AI securely. Claude, ChatGPT, and your internal agents all speak the same language with your data.

Measurable gains each week

Your teams gain hours on repetitive tasks, data analysis, document writing, and decision-making.

From brief to deployment,
nothing is left to chance

We don't start by coding. We start by understanding your business.

01

Discovery & scoping 1-2 weeks

We map your processes, pain points, current tools. We identify what has value and what needs automation. Deliverable: clear functional specifications document.

02

Architecture & prototyping 1-2 weeks

We design the technical architecture, data models, user journeys. You validate a clickable prototype before we write the first line of code.

03

Iterative development 6-16 weeks

2-week sprints. At each sprint end, you test a working version. We adjust in real-time, not 6 months later. You see your app take shape before your eyes.

04

Testing & deployment 1-2 weeks

Automated tests, security audit, performance optimization. Zero-downtime deployment with Kamal. Your app is in production, robust, and monitored.

05

Maintenance & evolution Ongoing

We don't disappear after launch. Corrective maintenance, security updates, new features — we evolve your tool as your business grows.

What we guarantee
on every project

Proprietary code — it's all yours

The code belongs to you. Git repository in your name. You can switch providers tomorrow if you want — everything is documented and structured.

Complete transparency from day 1

Git repo access from day one. You see every commit, every deployment, every technical decision in real-time. No black box.

Automated tests on critical features

Test coverage on every critical function. Your app doesn't break when we add something new.

Continuous delivery — no 6-month black hole

Working deliverables every 2 weeks. You test, we adjust. You see your investment materialize every sprint.

FAQ — Business App

Why Ruby on Rails and not another framework?

Rails lets you deliver faster with less code. For a business app in an SME/mid-market context, it's the best ratio of development speed / robustness / maintainability on the market. Companies like Shopify and GitHub use it in production at scale. And with Hotwire, you get reactive interfaces without the complexity of a separate JavaScript framework. Learn more about our Ruby on Rails expertise →

How much does a project cost?

Every project is different. A simple MVP can start with a few weeks of development, a complete ERP will take several months. We do precise scoping before committing to a budget so there are no surprises. Book a call, we'll give you a realistic estimate in 48h.

We already have an existing tool, can you take it over?

Yes. Whether it's an existing Rails app to improve, a legacy tool to migrate, or an Excel spreadsheet to transform into a real application — we do a technical audit and propose a concrete action plan.

What exactly is an "AI agent" or "MCP server"?

An AI agent is an intelligent program that can analyze your data, make decisions, and execute tasks automatically. An MCP server is the "universal connector" that lets this agent interact with your application securely. In practice: imagine an assistant that reads your emails, updates your CRM, and alerts you when a quote hasn't been followed up — without lifting a finger.

We're not a tech company, will we be able to use the tool?

That's the whole point of custom-built: the interface is designed for YOUR users, not developers. We simplify, guide, and train. If your teams can use a web browser, they can use your application.

What if we want to evolve the app after delivery?

That's built-in. The architecture is designed from the start to evolve. We offer a maintenance and continuous evolution contract: new features, adjustments, additional AI integrations. Your tool grows with your business.

Do you have a project in mind?
Let's talk about it.

A 30-minute call to understand your needs and tell you honestly if we can help — and how.

Book a discovery call

Free. No commitment. We don't bite.