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Internal toolsClient portalsB2B platforms

The business app that replaces your spreadsheets.

Three families of tools on one technical foundation: the one that runs your operations internally, the one that hands control to your clients in self-service, the one that brings several companies together.

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Driveline ImportMyBestCoachingCP ConceptINC StudioImpression ParisJordan Sapally Studio

What your business application includes

Real processes, mapped first

We start from how your teams actually work, not a theoretical spec: field interviews, mapped workflows, friction points identified.

Building on what exists

Spreadsheets, ageing databases, an ERP in place: we migrate your data and plug the tool into your software instead of scrapping it.

Adoption by your teams

A business tool is only worth something if it gets used: clean interfaces, key-user training and documentation shipped with it.

A codebase you own

Source code in your repository, infrastructure as code and technical documentation: you can take over whenever you want.

Roles, rights & traceability

Who sees what, who approves what: role-based permissions, SSO, two-factor authentication and audit logs, GDPR compliant.

Tests & tracked updates

Every feature is tested before release and every update is tracked: no surprise regressions in production.

Monitoring & backups

Uptime, latency and errors watched continuously, backups and restore ready: we see problems coming.

Changes on demand

Your business changes, the tool follows: new business rules, screens or integrations added as your needs evolve.

Three families of applications,three different problems

The same team and the same technical foundation, but projects that share neither users, stakes nor budgets. Here is how to place yours.

For your teams

Internal tool

Every day you run a process that lives in shared spreadsheets, email threads and the memory of two people. The internal tool centralises it: one source of truth, clear roles, a history of who did what and when. This is the family with the fastest payback, because the time saved is measurable within the first month.

  • Mapping of the existing process
  • Roles and permissions per team
  • Migration of the spreadsheet data
  • Exports and dashboards
  • Connection to the tools you already run

Replaces: shared Excel workbooks, Google Forms, in-house software written ten years ago.

For your clients

Client portal

Your clients call you for information you already hold: the progress of a case, an invoice, a document to sign, available stock. The portal opens that part of your data in self-service, with proper authentication and a controlled scope. The measurable effect is fewer inbound requests.

  • A secure space per client
  • Real-time case tracking
  • Documents and invoices to download
  • Automated notifications and reminders
  • Access and action logs

Replaces: email back-and-forth, follow-up calls, files sent as attachments.

For several companies

B2B platform

Several organisations work on the same tool without sharing rights or seeing the same data: a principal and its subcontractors, a network and its franchisees, a marketplace and its suppliers. This family is the most demanding architecturally, because data isolation is a design constraint, not a configuration option.

  • Isolated multi-organisation accounts
  • Business rules specific to each party
  • Approval workflows between parties
  • API for automated exchanges
  • Full audit trail of operations

Replaces: files exchanged between companies, ageing extranets, double entry from one system to the next.

The latest projects we've supported

Track, challenge, rank.

National

Ranking by sport

1 v 1

Challenges & points

A tool built with your teams, not just for them

30
Days of follow-up included after go-live
100 %
Source code delivered to your repository

From the first workshop to a tool used every day

We start from your real processes to deliver an application that is tested, documented and genuinely adopted by your teams.

We start with a workshop to understand your vision, users and business constraints. Together we define the priority features and technical foundations that will support your growth.

Product scoping & architectureDesign system & wireframesDevelopment & CI/CDProduction launch & management

Your business is growing.Give it the tool it deserves.

Talk to an expert

What your teams gain day to day

Our developers build business tools that remove double data entry, make your data trustworthy and give you real visibility on what happens inside your organisation.

Functional control

We translate your business rules into precise features: who does what, at which stage, with which approvals and which input data.

  • Business workshops
  • Roles and permissions
  • Data migration
  • User documentation

Reliability in production

A business application runs every single day and copes badly with incidents. We equip it to last and to surface problems before your users do.

  • Automated testing
  • Monitoring and alerts
  • Backups and restore
  • Evolutions on demand
Jérémy Wagner, founder of Agence Odyssée

Jérémy Wagner

Founder & CEO

Give your teams their time back, with an application built around your workflows.

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Clients have every reason to recommend us

« Their professionalism, their responsiveness and their eye for detail are remarkable. Since the new site went live, our traffic comes from Google and also from AI tools, and we've gone from one coaching enquiry every two weeks to 1 to 5 a day. »

Benjamin

Benjamin

Founder, MyBestCoaching

+160%

organic traffic

×14

coaching enquiries

since the site redesign

Join the companies that have grownand scaled up with our team

Showcase Website

IMPRESSION Paris

Website creation for this made-to-measure textile printing studio, which had no online presence at all. Premium art direction and a solid SEO foundation: the studio now ranks on Google and receives inbound quote requests.

+100%

Google visibility

IMPRESSION Paris
Showcase Website

MyBestCoaching

Bordeaux-based sports coach with a poorly built website and no SEO. We rebuilt everything from scratch (mobile-first design, online booking, SEO and GEO), taking him from one enquiry every two weeks to 1 to 5 a day.

×14

Coaching enquiries

from 1 enquiry / 2 weeks to 1 / day

MyBestCoaching
Showcase Website

Jordan Sapally Studio

Portfolio website for this creative studio specialising in photography, video and art direction. Immersive navigation, bold typography and a pure focus on the visual work.

2

Languages deployed

Jordan Sapally Studio

Your app runs on a modern, professional stack.

  • HTML
  • CSS3
  • JavaScript
  • ReactJS
  • TypeScript
  • Next.js
  • NodeJS
  • Shopify
« We start by understanding your company and your market. »
Jérémy Wagner, founder of Agence OdysséeJérémy WagnerFounder & CEO

What if we industrialised
your business processes?

A call with one of our developers to map out your needs and tell you concretely where to start.

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The questions we get asked the most.

The internal tool serves your teams: it replaces shared spreadsheets and centralises a process you run every day. The client portal opens part of your data to your clients in self-service, which cuts down requests by email and phone. The B2B platform brings several companies onto one tool, each with its own roles and rules. If you are unsure, the scoping workshop settles it in half a day, and budgets per family are detailed on the pricing page.

We code the majority of our applications in Next.js, React, Node and Postgres, with Tailwind on the front end and managed infrastructure for hosting. For mobile: PWA, React Native or native Swift / Kotlin depending on your performance constraints. We choose the stack that serves your project, not the other way around.

A business application is built for a single organisation: it follows your processes, your roles and your business rules, and you own it. A SaaS is a multi-tenant product sold by subscription to many customers, with self-service billing and onboarding. And if your need is mainly to present your business, a showcase site is what you are looking for.

We integrate proven solutions: SSO Google/Microsoft/Apple, 2FA, OAuth, JWT, and granular role-based permissions. Full GDPR compliance, data encryption, audit trails. We can target SOC 2 Type II if your market requires it.

Yes, 100%. No vendor lock-in, no proprietary platform: you receive the complete source code in your own repository, with documentation, infrastructure as code and CI/CD pipelines. From there, either your teams take over, or we keep evolving the tool through our Maintenance & Growth service.

On our public price list, an application starts at €5,000 to €10K for an MVP with up to five modules, delivered in 6 to 8 weeks, and sits between €10K and €20K for a complete multi-role application with integrations, delivered in 9 to 12 weeks. A multi-party B2B platform, where data isolation and cross-organisation workflows weigh heavily on design, is quoted on request. The breakdown of packages and budgets is on the dedicated page, and the final quote comes out of the scoping workshop.

Yes, and that is the most common case. A business application is not meant to replace your accounting, your CRM or your ERP: it fills the gap between them, the one your teams currently plug with a spreadsheet. We connect to what exists through APIs or scheduled imports, and we migrate only the data the tool actually needs.

That is the main risk of a custom tool, and it is handled through documentation and code ownership, not trust. You get the source code on your own repository, the infrastructure described as configuration files, the deployment procedures and up-to-date technical documentation. Any competent team can pick the project up, whether yours or ours through the Maintenance & Growth offer.