We build software that holds up and ship it in weeks.
An AI-native product studio. We take your idea to production — fixed price, fixed date — and every line of code is yours.
An independent studio in Montpellier, building for teams across the EU.
- 1product — live, with paying customers
- Weeks6 to 16, to production
- 2016and still going
- Fixedprice and date, every project
What we build
Platforms, mobile apps, APIs, SaaS — the software your business runs on.
The production version, not the demo — real users, real load, the edge cases handled before they reach you.
Something we built
qualitra.ioAn AI translation platform for Shopify — 100+ languages, a human editing layer, multi-store, one dashboard.
Idea to paying merchants: we did the product design, the architecture, the build and the launch. It's live and growing.
Read the story
Why Idelys
Fixed price, fixed date
A quote broken down line by line, after the analysis phase. Change the scope and we redo it before the work, never after.
Weeks, not quarters
Most builds reach production in 6 to 16 weeks, and you know which week before we start.
You own all of it
Code, repository, infrastructure accounts, keys. No lock-in, nothing licensed back from us.
Senior team, AI-native
Senior engineers with AI in the loop. The quality of a large studio at the pace of a small one.
You talk to the builders
No account managers, no hand-offs. Your questions go straight to the person building the thing.
Still here after launch
Every build ships with a support window, and we're there for the next version — not gone the day it goes live.
- Definition — We turn your still-fuzzy idea into a sharp brief: what it does, who it's for, and how we'll know it worked.
- Analysis — We pop the hood — the tech, the risks, how much work it really is — before a line of code.
- Quote — Firm price, firm date, broken down line by line. No asterisks, no 'but actually'.
- Planning — The roadmap is set, dated to the week. Zero mystery about where things stand.
- Build — We build in small strokes and you watch the product come alive in real time — no black box.
- Testing — Your turn: you try it, you sign off, you ask for tweaks. Nothing ships without your green light.
- Delivery — We hit the button and it goes to production. Source code and keys — all yours.
- Follow-up — We keep an eye on the dashboards and stay one message away, until everything hums.
- Evolution — Now that it's running, we grow it — new features, more scale, the next version.
Our process
Definition
01/ 09
We turn your still-fuzzy idea into a sharp brief: what it does, who it's for, and how we'll know it worked.
Tools we build with
- Next.js
- React Native
- PostgreSQL
- Stripe
- Resend
- Vercel
- Claude
Proven infrastructure, nothing exotic. We run AI through the whole build as structured agentic workflows — research, code, review, tests — with the engineering discipline you'd expect either way. No vibe-coding.
Who we are
A small EU team out of Montpellier that ships like a much bigger one. AI does the heavy lifting, we keep the judgement — and you deal directly with the people building your product.
— Goulven, founder
Got a project in mind? Tell us everything.
We work with funded startups and product teams, and we keep only a few builds live at once — so you're never client number forty, and Goulven is on every project.
- A short call15 minutes to hear what you're building and see if we're a fit.
- A fixed quoteWithin a few days: scope, price and date, broken down line by line.
- We buildDesign, build, launch and a support window — with you watching it happen.
Questions founders ask
I'm not technical. Is that a problem?
No. Most of the founders we work with aren't engineers. We turn what you want into a spec, show you the product as it takes shape, and keep the jargon out of it.
Who owns the code?
You do — every line, plus the repository, the infrastructure accounts and the keys. No lock-in, nothing to license back from us.
Is the price really fixed?
Yes. After the analysis phase you get a firm price and a firm date, broken down line by line. If the scope changes we re-quote before doing the work, never after.
How long does it take?
Most builds run 6 to 16 weeks from kickoff to production. We tell you which week you go live before we start.
What does "AI-native" actually mean here?
AI is in the pipeline, not just the pitch. We run agentic workflows: the model works in structured steps, with automated tests, code review and version control around every change, following current engineering best practice. It's not vibe-coding — the architecture, the decisions and the accountability stay with us. It's also why a small team ships at this pace.
What if I don't like what you build?
You see it at every step, so there are no big reveals. We iterate on the details until it's right, and nothing ships without your sign-off.