France · France
Web application development in Lyon
A website presents information. An application does work — it holds state, enforces rules, and produces something at the end. Most businesses that need the second one are running it on a spreadsheet nobody is allowed to sort, and paying for that in errors rather than in software. For Lyon businesses, quoted in EUR from $200, typically live in 10 days.
What web application development includes for a Lyon business
Fixed scope, agreed in writing before development starts. From $200, typically live in 10 days.
- Specification covering user roles, permissions and every state a record can legitimately be in
- Relational schema designed first, with constraints enforced in the database rather than hoped for in the code
- Authentication with hashed credentials, session handling and role-based access control
- The application itself: forms, lists, filters, actions and the reporting that justified building it
- Transactional email sent through your own authenticated domain
- Audit trail on anything that changes money or status
- Deployment, environment configuration and a backup procedure verified by an actual restore
- 30 days of snag fixes after go-live
The terms for a French client
| Starting price | From $200, quoted and invoiced in EUR |
|---|---|
| Typical timeline | 10 days once content is supplied |
| Tax position | VAT at 20%, reverse-charged |
| Data protection | the EU GDPR, enforced by the CNIL — resolved by a DPA with EU Standard Contractual Clauses |
| Payment rails available | Cartes Bancaires, Stripe, Lydia, and PayPal |
| My day in Lyon time | 06:00–15:00 — about 6 hours of overlap |
Why this matters for France specifically
The CNIL enforces cookie rules more aggressively than most EU regulators, and "refuse all" must be as easy as "accept all". A French site running a standard one-button banner is carrying a known, fineable defect.
What actually ships when a Lyon project goes live
A handover for a Lyon client is not a link and a login. It is the repository, the hosting account in your name, the domain registered to you, the payment provider account under your business, and a written record of every credential as it was created rather than dumped in one email at the end.
The test I apply is uncomfortable but correct: if I disappeared tomorrow, could another developer pick this up on Monday without calling me? If the answer is no, the handover is not finished. That standard is why the documentation takes a day I do not bill separately — it is part of the build, not an upsell.
Retail and e-commerce in Lyon
A store is judged at the checkout, not the homepage. For France that means the payment methods have to match what people actually use — Cartes Bancaires, Stripe, Lydia, and PayPal — and the cart has to survive a slow connection and a page refresh. Most abandoned baskets are not indecision; they are a checkout that broke and gave no reason why.
The second issue is stock truth. A product page saying "in stock" when it is not costs you the sale and the customer, and the fix is unglamorous plumbing between wherever your stock actually lives and the storefront. That is worth a day of work far more than the product photography carousel is.
A mobile layout nobody tested on a real phone
Desktop-first builds fail in predictable places: a navigation menu that cannot be closed, a table forcing the whole page sideways, tap targets too close together, and a sticky banner sitting over the button. Each one is invisible on a laptop and each one loses customers.
Most visitors to a Lyon small business site arrive on a phone, so I design at phone width first and widen from there. That ordering is not a stylistic preference — it is the only way the small screen gets the attention the majority of your traffic deserves.
What I am not claiming about Lyon
- I have no office, postal address or phone number in Lyon
- I cannot meet you in person, and if that is a requirement you should hire locally
- I am not claiming existing clients in Lyon specifically — my live work is listed on the work page and you can check it
- Nothing on this page is a guarantee of search rankings, which no developer can honestly offer
Web application development in Lyon — common questions
- Do you provide ongoing maintenance after launch?
- Thirty days of snag fixes are included after launch at no extra cost — anything that does not work as specified gets fixed. Beyond that there are monthly plans for updates, backups, monitoring and small changes. They are optional and cancellable; a site handed over properly does not require a retainer to keep running.
- Can you fix my existing site rather than rebuild it?
- Often, yes, and it is usually the cheaper answer. Speed problems, a broken mobile layout, a form that silently fails or missing structured data are all fixable on the site you already have. I will tell you which of the two you need after looking, and a rebuild only gets recommended when the fix would cost more than starting again.
- What happens if I am not happy with the result?
- Work is delivered in milestones against a written scope, and you review each one on a staging URL before it is paid for. If the delivered milestone does not match the scope, it gets corrected before anything moves forward. That structure exists so disagreement is resolved at the stage it happens rather than at the end when it is expensive.
- Will the site actually rank in Lyon search results?
- The build handles what is technically controllable: crawlable HTML, correct headings, structured data, fast pages, a clean sitemap and Search Console set up on day one. Ranking also depends on your competitors, your domain's age and the links pointing at you, which no developer controls. Anyone guaranteeing a position is guessing or lying.
- Can you migrate my Lyon site without losing rankings?
- Yes, and the redirect map is the whole job. Every existing URL is mapped to its new equivalent with a 301 before launch, and anything with no equivalent goes to the closest relevant page rather than the homepage. Sites lose rankings in migration because that mapping was skipped, not because migration is inherently risky.
- Do you build on WordPress or something custom?
- Whichever the project justifies. WordPress when you need to edit content constantly and want a familiar admin. A static build when speed and security matter more than a plugin ecosystem. Custom PHP and MySQL when the logic is genuinely yours. The choice is explained in the quote with its trade-offs, not presented as a foregone conclusion.
- Do you actually work with businesses in Lyon?
- Yes, remotely. I work with French clients from Islamabad, quoting in EUR and invoicing in EUR. I have no office, address or phone number in Lyon and will not pretend otherwise. If your project needs someone physically present, hire locally — I will say so in the first reply rather than after a deposit.
Related pages
Other services in Lyon
Web application development in nearby France towns
The full service detail — process, deliverables, what is excluded and the FAQ — is on the main web application development page. Everything I build for Lyon is on the Lyon page, and every town in France is on the France coverage page.
Web application development in Lyon — get a fixed quote
Send the brief and you get a reply within one business day, priced in EUR from $200. If web application development is not what your project actually needs, I will say so.
- Response
- Replies within 1 business day
- Hours
- Mon–Fri, 09:00–18:00 PKT — overlaps 05:00–14:00 UK, 00:00–09:00 US Eastern
- Booking
- Booking projects from October 2026