Custom software for your business
At illusion Studio, we specialise in custom software development. Our solutions are 100% tailored to each client’s specific needs.
Our approach is different: with us, software does not become obsolete, it evolves with your business. We design it with you, step by step, so it feels like yours from day one.
Each custom development becomes a strategic investment: it saves you time, improves decision-making and frees your teams from repetitive tasks. There is no need to read complex manuals, because you take part in the whole process and you master the tool even before delivery.
We put our experience at your service to propose high value-added ideas. This way, software development is no longer a cost, but an investment. Our clients move from software they barely used… to a solution that encourages them to rethink other processes, and even transform entire departments.
Security and warranty for your software
Beyond being custom-built, your software is secure and supported for the long term.
🔒 Enterprise-grade security: we work with dedicated servers, IP-restricted access, and daily backups, with weekly and monthly retention.
✅ No time limit in practice: the law sets a 2-year warranty, but in practice, we fix any malfunction even well beyond that.
🤝 Responsive, personalised support: every request is handled, because your peace of mind matters to us too.
👉 Share your software idea with us — we will make it real.
Our custom software development method
The development belongs to you 100%. No hidden licences, no external dependencies: an evolving tool designed to move at the pace of your business and adapt to the way you work.
We create custom software solutions tailored to each client’s needs, with an agile method that allows you to take an active part in every stage of the project.
Thanks to Scrum and Kanban, we plan realistic sprints, anticipate obstacles and deliver tangible, measurable results at each phase.
Our goal is not just to code: we want you to have the peace of mind of knowing, at every stage of the project, what is in progress, how it is evolving, and how it will improve your day-to-day. And on launch day, no surprises: you start using a tool you already know, because you helped create it.
A few examples of our custom software
AI-powered software development
Imagine software that can learn from your data and act autonomously. We build custom solutions that integrate artificial intelligence: task automation, pattern detection, and faster decision-making.
👉 See the AI-powered software service
CRM development – Sales portal
We design custom CRMs tailored to sales management, prospecting and customer retention. From simple portals to advanced reporting and sales systems.
👉 See the custom CRM service
ERP integrations and software licence savings
We connect your applications to your ERPs (Navision, SAP), APIs and internal systems. The result: fewer licences and more efficiency in sales, purchasing and logistics.
👉 See the ERP integrations service
Extranet – Customer portal
Give your customers real-time access to their data: invoices, reports and documents. We build intuitive extranets that improve the customer experience.
👉 See the Extranets service
Intranet – Employee portal
Optimise productivity with custom intranets: HR management, internal requests, approval workflows, and integrations with Microsoft SharePoint®.
👉 See the Intranets service
Service management software – Technical support and operations
Solutions for technical service companies: route planning, incidents, online reports, geolocation and mobile apps for technicians.
SaaS development
We create SaaS software for online businesses: time management (Profesto), training platforms, and e-commerce stores integrated with PayPal and Redsys.
🚀 Not sure yet what kind of software you need?
Whether your idea is clear or still a bit fuzzy, we help you shape it.
👉 Share your idea with us — we will make it real.Sectors where we have delivered software development: success stories
Most of our custom software development and CRM integration projects are carried out as private, internal-use projects. Out of respect for confidentiality, we cannot disclose these details in full. However, we present here a few success stories from clients who trust us with their projects. These projects were selected from many others for their sector diversity, real-world use cases, technical complexity, and overall scope. Feel free to contact us to learn more: we are convinced that every project can become a great project.
A company specialising in professional packaging services, recognised for its strong track record and high level of professionalism. They chose us as a key partner for their digital transformation and online presence. Together, we delivered several high-complexity projects, integrating multiple systems, all managed using agile methodologies such as Scrum and Kanban.
A leading company in fumigation and pest control services. Since 2008, we have been a key partner in their digital growth. We developed several interconnected projects and achieved our goal: end-to-end optimisation of their internal processes.
A recognised company in the telecommunications sector. Since 2018, we have actively contributed to improving their developments and integrations, with a focus on optimising processes and customer relationship management. We designed various management and communication portals, as well as custom applications.
A leading player in natural gas distribution and technical support services. Since 2014, Tegas has entrusted us with the development of all their internal tools, covering distribution, commercial activity and the management of mobile technical interventions (field service).
We support the MIA Advanced Systems group, a set of companies specialising in innovation, analytics, consulting, integration and the development of technology solutions. We contribute value through custom software development by taking part in major innovation and digital transformation projects.
A company specialised in strategic consulting and digital transformation, with more than 15 years of experience. We collaborate on various custom software and mobile application projects, bringing expertise to improve production processes as well as the planning and management of mobile technical interventions.
A real estate group with a broad portfolio of properties and clients. Since 2015, they have placed complete trust in us for development, automation and third-party integrations. We designed tailor-made software solutions capable of meeting the high standards of a fast-growing group.
The Emececuadrado group is a strategic consulting firm in the energy sector. Since 2014, we have contributed to the development of tailor-made solutions and the implementation of various integrations for managing information related to the electricity market.
A multinational specialised in improving logistics productivity through tailor-made process automation solutions. At illusion Studio, we actively contribute to their projects by developing custom software for production management, mobile field service, as well as integration projects.
A partner for your digital transformation
This is how we become a key partner in your digital transformation: we bring value and agility through our methodology, and we integrate your software with other systems to ensure efficient operations.
We support you at every stage of the project — from design and functional analysis through implementation and post-launch support.
👉 Tell us about your software needs and we will deliver them.
FAQ on custom software development
Custom software is a solution designed specifically for your business, with no licence constraints or unused features. Unlike standard software, it fits your processes 100% and evolves with you.
The cost depends on the scope of the project. At illusion Studio, we analyse your needs and provide a personalised, transparent quote. The key point: your investment turns into mid-term savings through automation and the reduction of unnecessary licences.
The duration depends on the complexity of the project. Thanks to Scrum, we organise the work in sprints so you can see continuous progress and start using the software from the earliest phases.
In our projects, we use proven, versatile technologies, relying on languages such as Java, JavaScript, PHP, SQL/PL-SQL and Python, as well as markup and modelling languages such as HTML5 and UML.
These technologies are industry standards, ensure scalability, facilitate integration with other systems, and ensure the solutions we create stay alive and evolve over time. If you would like to learn more about these programming languages, you can download our brochure by clicking here: Download the brochure
Yes. Each project includes a user manual and post-launch support. In addition, because you validate the interface throughout development, you are already familiar with the tool before the final delivery.
Absolutely. We are experts in custom integrations, CRMs, intranets and extranets. Our goal is to make your entire digital ecosystem work as a unified system.
- Vous payez uniquement pour ce que vous utilisez.
- No dependency on a third-party vendor
- The software belongs to you and evolves with you.
- It adapts to the way you work, not the other way around.
To avoid any loss of information, timeout control mechanisms and data consistency checks are included in our solutions.
Absolutely. Our integrations are modular and optimised for horizontal scaling. This allows us to extend the functionality of an existing integration or create new interconnected integrations, forming an automated ecosystem for process control. This has already been the case for several of our clients.