Your custom software, delivered fast. And built to last.
Business tools, client portals, or SaaS, for small businesses and startups.
We build the web application that fits exactly how you work. A usable first version in a matter of weeks.
Custom software and web applications
INTERNAL BUSINESS TOOL
Your teams juggle spreadsheets, emails, and manual re-entry, and one copy-paste mistake can cost a full day.
One tool that follows your business rules: data entry, approvals, tracking, exports. Everything in one place, accessible from anywhere.
A uniform allocation extranet for a public transport operator's field staff: orders, approvals, and support, used daily out in the field.
CLIENT PORTAL · EXTRANET
Your clients order by email, then call to chase you for updates on where their request stands.
A branded online space where they place orders, track requests, and find their documents, connected to your existing tools (ERP, billing).
A quoting and ordering portal for public agencies, connected to the supplier's ERP, from quote to invoice.
SAAS APPLICATION · MVP
You've validated an idea and need a solid first version, without sinking a year into it.
A clean MVP, live in a matter of weeks, on an architecture ready for what comes next: accounts, payments, dashboard.
Solho, a SaaS platform for real estate investors: listing aggregation, profitability analysis, project tracking.
A qualified team, human-sized.

The team
Agence Turing is a small, hands-on team: two senior developers backed by a trusted network of experts. We build sites and applications made to last, delivered fast and shaped around your business.
A SINGLE POINT OF CONTACT
One dedicated contact who knows your project inside out, from the first conversation to launch. Decisions happen fast, and nothing gets lost along the way.
A NEXT-GENERATION AGENCY
An agency model built for speed: no heavy process, no unnecessary layers. We deliver in weeks what traditional agencies deliver in months.
BUILT TO LAST
Automated tests, continuous documentation, code reviews, controlled deployments: your application is an asset that grows with you, not technical debt piling up.
From your first message to launch
You know exactly what's happening, and when, from the very first message.
Discussion & scoping
We get back to you within 24 hours and set up a free 30-minute discovery call. You leave with an honest opinion, then a written proposal: scope, milestones, and a fixed price.
Design & development
Regular deliveries: you test, we adjust. We move forward step by step until we reach a usable first version, at your project's pace.
Launch & handover
Your application in production, your team trained, the code and access under your own accounts. We stay available after that, with no long-term commitment.
Our commitments, in black and white
EVERYTHING BELONGS TO YOU
The code, the data, the hosting: everything is in your name and handed over to you, with up-to-date documentation. You're not tied to anyone and can leave at any time, taking your entire project with you.
A FIXED, ALL-IN PRICE
The quote is binding and broken into milestones. No meter running, no surprises along the way.
WEEKLY DELIVERIES
No months-long black box: you see your application move forward continuously, and you test it as you go.
STANDARD, PORTABLE TECHNOLOGY
Proven, well-documented technology that any developer can pick up. No in-house framework, no lock-in.
HOSTED IN EUROPE, GDPR BUILT IN
Data hosted in Europe (OVH by default), encryption, access management, and GDPR compliance handled from day one.
WE SUPPORT YOU, WE DON'T LOCK YOU IN
Ongoing maintenance and updates with us, with no long-term commitment, or a clean handover to your team or another provider.
How much does custom software cost?
Three factors shape your project's budget:
SCOPE
The number of screens, user roles, and business rules to cover.
INTEGRATIONS
Connections to your existing tools: ERP, CRM, billing, payment…
REQUIREMENTS
The level of security and compliance required, and the volume of users to handle.
That's why we don't publish a magic price list, but we don't play hide-and-seek either. From the discovery call, you leave with an honest range, then a fixed-price quote once we've scoped the project. And if an off-the-shelf tool covers your needs, we'll tell you, even if that means pointing you toward a simpler solution.
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Your questions before you get started
How much does custom software cost?
It comes down to three things: scope (screens, roles, business rules), integrations with your existing tools, and your security and volume requirements. That's why there's no honest catalog price. In practice: you describe your project, we get back to you within 24 hours, and you leave the discovery call (a free 30 minutes) with an honest opinion and a first budget range. The final quote is fixed price, broken into milestones, so you know what you're paying before you commit.
How long does a typical project take?
It depends on the scope. A simple application's first usable version can be ready in a matter of weeks. A full rebuild or an ambitious SaaS product takes longer to reach a solid first version, with continuous improvements after that. We always break the work into regular deliveries, so you see your product move forward every week instead of disappearing into a months-long black box.
Who owns the code and the data?
You do, 100%. You receive everything: the source code on your own Git repository, database access, hosting accounts, and full technical and functional documentation. Nothing is locked down, nothing belongs to the agency. The day you want to bring everything in-house or move to another provider, you just take your access with you.
How do you bill? Fixed price or time and materials?
For the initial build: a fixed price, broken into milestones. You know exactly what you're paying and what you're getting at each stage, with no hidden budget creep. For updates after launch: we switch to a more flexible model (a monthly package or pay-as-you-go), because needs evolve and a rigid fixed price doesn't fit that as well.
Who maintains and evolves the application after launch?
Two options, you choose. Either we keep working with you on an ongoing maintenance and improvements arrangement, with no long-term commitment. Or you take over with your own team or another provider: we hand over all the documentation and tests, and manage a clean handover. Either way, you're never locked in.
What happens if Agence Turing disappeared tomorrow?
It's a fair concern, and we address it head-on during the discovery call. Three concrete points: (1) your code, data, and hosting are yours at all times, nothing depends on us still being around; (2) we use standard technology, so any developer can pick up the project; (3) documentation is kept current continuously, not thrown together at the last minute. Even in the worst case, your tool keeps running and can be taken over.
Can you take over a project someone else started?
Yes, it's a recurring part of our work. We always start with an honest audit of the existing code to tell you what's solid, what needs fixing, and what's better rebuilt. No gratuitous judgment of the previous provider: just a clear diagnosis and a costed action plan to move forward.
Do you use AI to build software?
AI is an assistive tool, not an autonomous developer. Everything it produces goes through review by our experienced developers, our automated tests, and the same checks as hand-written code. The result: we move faster on repetitive tasks, which frees up time for the part where human rigor can't be replaced: architecture, security, edge cases. You get quality code, produced faster, not code churned out on an assembly line.
You're a small team. How do you handle large projects?
At the core, two senior partners run every project end to end: you always deal with the same point of contact. Around that, we bring in a network of expert freelancers (front-end, back-end, design, DevOps) we know well, have already delivered with, and manage ourselves. We scale the team to fit your project, without billing you for overhead you don't need.
Got a project in mind? Let's talk.
Tell us about your project: we'll get back to you within 24 hours, with an honest opinion and a first estimate.