Your custom web application in 2 weeks for €5,000
Build your project brick by brick.
Your custom web application in 2 weeks for €5,000
Build your project brick by brick.
I'm a developer, but I've always been an entrepreneur first. I've launched 3 products and created 3 agencies, the largest with 50 people, including 35 developers.
I've managed €15 million in projects, the largest being €2 million over 4 years. I know how to build software.
I know the struggles of IT projects. I know the challenges of launching projects too. I understand that you spend your time managing a thousand things, and not enough time building your vision.
I want to be your solution.
17 years of development experience
- I started with Ruby in 2006, when Rails was just emerging.
- I founded and led an agency with 50 people.
- I've delivered +80 projects for startups and major clients (Doctolib, SNCF, Thales, Accor...).
- I've managed €400K+ projects in healthcare, retail, and industry.
I've seen all the pitfalls of tech projects
- I've seen 100-page specs transform into 200 pages.
- I've experienced all the traps of large tech projects.
💡 Do you recognize these problems?
Most tech projects fail because of these classic traps. That's exactly why I created a different approach.
Check if your project qualifies →Acceleration through AI
In the past two years, I've revolutionized my coding approach. I specialized in generative AI applied to development.
- I've developed acceleration tools that cut development time by 75%.
- I've created systems that generate testable and maintainable code.
- I've guided startups and companies in their transition to AI.
- I've coded applications that generate €80K in annual savings.
That's why I created 5000.dev
A simple promise: applications in 2 weeks for €5,000.
No endless meetings. No ballooning quotes. No dragging timelines.
Just concrete solutions for your projects, delivered quickly.
Get started nowSolutions for entrepreneurs and project creators
This offer is for you if...
- You have a project idea or run a business and need a custom web application
- You're looking for a simple solution to manage processes or test an idea
- You have a limited budget and want quick results
- You want to validate an idea or test a concept before investing more
- You're willing to build your project brick by brick
This offer is not for you if...
- You're looking for a full-time or embedded developer for your team
- You want a detailed 6-month plan and complete fixed quote upfront
- You want an e-commerce application or a showcase website
- You need multiple meetings and a traditional development process
- You prefer working with a large agency or multiple stakeholders
Traditional tech projects are...
Slow to start
3-4 weeks of meetings before the first line of code. At this pace, your competitor will have validated their market before you even start.
Budget overruns
Complex quotes, hidden costs, and that famous phrase "it depends". Impossible to plan with confidence.
Risky investment
Building for 6 months only to discover it's not what your users wanted. Every entrepreneur's nightmare.
Too many contacts
Sales rep, project manager, junior dev... Nobody really understands your business needs.
A solution tailored for entrepreneurs and creators
Custom web applications without the usual complications of IT projects. Built brick by brick.
Few meetings 30+60 min
Only two meetings: 30 minutes to see if we're a good fit, then 1 hour for specifications. That's all the time we need from you.
Guaranteed delivery 2 weeks
Your web application is delivered in 2 weeks, or you get refunded. Ideal for quickly validating an idea or launching a project.
Fixed price €5,000
A transparent and surprise-free rate for your budget. You know exactly what you're paying, with no overruns or hidden costs.
Quick validation
Test your idea quickly with your users or customers. Perfect for validating a concept before investing more.
Custom web applications for your projects
Data management, process automation, internal tools, MVP to test an idea... Your web application is developed according to your specific needs, without unnecessary features.
Our 6-Step Process
Discovery Meeting
- 30 minutes meeting
- Check if we are a good fit
Specification Meeting
- One hour meeting
- Define specifications together
Contract & Invoice
- Simple contract
- Secure payment
Mockups
- Creation of mockups
- Exchange until validation
- Usually 1-2 days (max 2 weeks)
Development
- 2-week development deadline
- Starts after mockup validation
Delivery & Support
- App deployed and ready
- 2-week bug fix period
- Complete source code
Deployment Options
Self-Hosted
Free
- Complete documentation
- Source code
- Deployment guides
Managed
50€/month
- Hosting included
- Maintenance
- Technical support
What my clients say
"I had this vision for Octogo.ai that I'd been carrying for over a year - creating THE reference platform for AI tool selection. Loïc accomplished in 2 weeks what I hadn't managed to achieve in a year. His pragmatic approach and immediate understanding of the challenges transformed my concept into a functional platform. The most impressive part? Not only does the result exactly match my vision, but the first users adopted it immediately."
Arnaud Cliquenois
CEO of Octogo.ai
"Loïc's expertise in generative AI has been transformational for our company. His guidance helped us reduce our course creation time by 6x, generating €80K in annual savings. A direct impact on our bottom line while maintaining our high quality standards."
Charles-Eliott Debourdeau
CEO of GlobalExam
"Loïc has been supporting us in our transition to generative AI for 2 years. His expertise is real and valuable. He's helping us develop our proprietary tool for accelerating content creation with AI. A trusted technical partner."
Thierry Decroix
Co-founder Digitalkeys, CEO Canard & Cie
Frequently Asked Questions
Everything you need to know about our process and how we work
How does the brick by brick method work?
Is the design/UI of my application included?
What happens if you don't deliver in 2 weeks?
My needs are complex, is it possible?
What's included in a module's price?
How do I start my application?
Based in Paris, available worldwide
French company located in the heart of Paris, we work with clients worldwide. Distance is no barrier to creating your web application.
Our address
Located in Paris's 1st district, near the Louvre and Opera.
14 avenue de l'Opéra
75001 Paris
France
100% remote work
Efficient online collaboration, regardless of your location
European timezone
Available during European business hours (CET/CEST)
French company
Euro invoicing, GDPR compliant, French law
Your custom web application awaits In 2 weeks for €5,000 with 0 complications
Simplify your processes, test your ideas, and improve your productivity with a custom web application. No endless meetings, no budget overruns—just a functional solution in two weeks.
Build your project brick by brick, one module at a time.