A team of engineersBased in FranceBy your side from A to Z
Digital should grow your business, not complicate your life.
Website, online shop, application, custom software, process automation: whatever your project, a team of engineers handles it from A to Z. You keep your trade, we take the tech. Simple, concrete, no jargon.
Today, digital decides who moves ahead and who falls behind
Whatever your trade, your growth depends on your digital tools: your visibility, your sales, your internal organisation. Well equipped, businesses accelerate. Poorly equipped, they wear themselves out and watch others pull ahead. The difference isn't luck, it's the right tools, well built.
01
You want to attract more customers
We make you visible and credible where your prospects search: a site that inspires trust, a shop that sells, a presence on Google and AIs.
02
You waste time every day
Manual tasks, endless Excel files, tools that don't talk to each other: we design the software or automation that frees up hours every week.
03
You want to stand out
A strong identity, an app, a custom product: we build what sets you apart from the competition and gives you a real head start.
Our answer: a team of engineers that turns your need into a concrete tool, from website to custom app. We take the tech, you keep your trade.
Who we work for
Whatever your need, we have the right answer
From a showcase website to a custom SaaS, we have built clear paths for every profile. No jargon, no vague quotes: a suitable pack, an announced price, fast delivery.
Tradesperson · Freelancer
You want a professional online presence to be found on Google and reassure your prospects. A clean, effective website is enough.
PlumberElectricianCoachConsultant
RecommendedTradesperson Showcase · 590€
Popular
Shop · Restaurant
You have premises and want to attract customers in your area. Google reviews, social media, bookings or orders, everything is connected.
RestaurantBakeryHairdresserCaterer
RecommendedPro Showcase · 899€
E-commerce seller
You sell (or want to sell) online. Turnkey Shopify shop, payments, stock, automatic emails. All you have to do is package.
DTCDropshippingPhysical productsBrands
RecommendedShop Pack · 1 499€
Startup · Project founder
You have an idea for a SaaS, platform or business software. We code your MVP in 4 to 6 weeks, ready to test on real users.
B2B SaaSMarketplaceBusiness toolMVP
RecommendedSaaS MVP · from 4 999€
Mobile app · iOS & Android
You want a native mobile app for your customers or your field team. A single codebase, App Store + Google Play publishing included.
Consumer appBusiness appGeolocatedCommunity
RecommendedMobile app · from 5 999€
Brand · Identity creation
You are launching or rebranding: logo, brand guidelines, stationery, social media kit. A consistent identity everywhere.
LogoBrand guidelinesStationerySocial kit
RecommendedComplete Identity · 899€
Our expertise
One partner for all your digital needs
From the logo to SaaS. From the showcase website to the marketplace. From the mobile app to the acquisition campaign. We cover your entire digital chain, with a coordinated team behind every project.
Your customers judge you, online, before they even speak to you.
0%
of French people look up a product or service online before buying
INSEE, 2024
0%
of small-business owners see digital as a real benefit
France Num Barometer, 2024
0%
of small businesses still have no website
France Num Barometer, 2024
Customer reviews
What our clients say
No fake testimonials. Real clients, real sites delivered, real feedback.
Motorcycle e-commerce
“E-commerce shop delivered right on time, clean and fast. We sell motorcycle helmets and intercoms to demanding riders: the site lives up to it. Serious follow-up after delivery, that makes a difference.”
Custom configurator
“We wanted a site that inspires trust to sell high-end custom wallpaper. The real challenge: an ultra-personalised configurator (dimensions, patterns, finishes) that no agency could deliver properly. Rassine did it, and it's smooth.”
Delivered in 48h
“Transparent quote, fast delivery, responsive support. I was worried about the technical side: in the end I only had to provide my info and photos. Everything else was handled, even the SEO.”
Our method & commitments
Simple, transparent, from start to finish
Website, app, software or automation: we follow the same process on every project, and we commit at each step. You always know where things stand.
01
We listen to you
A conversation to understand your trade, your problem and your goal. We clarify the need, with no technical jargon.
Discovery call
02
We propose
A clear solution and a transparent quote. You know exactly what we will do, how, and what it brings you.
No surprises
03
We build
Our engineers build your custom project. You follow the progress and approve each step. Direct communication.
Custom
04
We support you
Launch, training, follow-up. We stay by your side after delivery, not just before the invoice.
Follow-up included
Honest comparison
Why Rassine rather than another?
We don't ask you to take our word for it. Compare for yourself.
Traditional agency
Freelancer
RASSINE
Delivery time
3-6 months
2-4 weeks
48h
Price
5,000 to 15,000€
1,500 to 5,000€
590 to 1,499€
Free mockup
No (paid quote)
Rarely
Yes, within 24h
Post-delivery follow-up
Extra package
Often absent
Included, 7 days a week
Optimised SEO
Optional, costly
Variable
Included
A dedicated team
No (project manager)
Yes
Yes
Delivery time
Traditional agency3-6 months
Freelancer2-4 wks
Rassine48h ✓
Price
Traditional agency5k-15k€
Freelancer1.5k-5k€
Rassine590-1499€ ✓
Free mockup
Traditional agencyNo
FreelancerRare
RassineYes, 24h ✓
Post-delivery follow-up
Traditional agencyExtra
FreelancerAbsent
RassineIncluded ✓
Clear pricing
Honest prices, no surprises
From the showcase website to the custom SaaS. Every pack detailed so you know exactly what you pay and why.
Professional showcase website delivered in 48h. Ideal for tradespeople, coaches, restaurants, independent professionals. For SMEs and more advanced needs (multi-page, SEO blog, member area), see the SME Site · Custom plan below.
Tradesperson Showcase
Your clean, professional online presence. Ideal for coaches, consultants, tradespeople and freelancers who want to be found on Google.
From590€all-inclusive · one-shot
Hosting free for the 1st year · then 48€/year
or 100€/month managed plan Site + hosting + maintenance + unlimited minor changes (major changes on quote). All-inclusive, with no large upfront budget.
What's included
Full build of the one-page site
Custom domain name (1 year free)
Hosting for the 1st year · then 48€/year
Secure HTTPS certificate
Professional one-page siteWho you are, what you do, how to contact you.
Design that reflects youCustom colours, photos and copy, not a generic template.
Basic Google rankingShow up when people search your name or trade + town.
Contact formYour prospects write to you straight from the site.
100% responsivePerfect on phone, tablet and desktop.
Delivery in 48hOnline within 2 working days maximum.
Multi-page + Google reviewsAvailable with the Pro Showcase pack.
Options
Technical support 7 days a week: 19€/month
Local SEO + GEO monthly Optim Pack: on quote
The complete showcase website for shops, restaurants and caterers. Attract and inspire trust from the very first visit.
From899€all-inclusive · one-shot
One-shot: no monthly fees, the code is yours
or 150€/month managed plan Site + hosting + maintenance + unlimited minor changes (major changes on quote). All-inclusive, with no large upfront budget.
Complete redesign or new site for SMEs, ambitious brands and scale-ups. Dedicated art direction, multi-page, business integrations. Every project is scoped together.
PriceOn quotereply within 48h
Free quote within 48h · scope defined together
or a tailored instalment planBudget adapted to your cash flow: payment in instalments or a monthly managed plan, defined together in the quote.
For SME needs
Art direction & Figma mockup delivered
Multi-page, SEO blog, member area, multilingual
Business integrations (CRM, ERP, internal tools)
Options defined together in the quote
Dedicated art directionMoodboard, visual exploration, typography choices. You approve before coding.
Figma mockup deliveredYou stay the owner of the source files, editable after delivery.
Animations & micro-interactionsPolished premium effects that elevate your brand.
Integrated SEO blogPublish articles, attract Google traffic over the long term.
Multilingual or member areaGeolocation, private area, subscribers. Whatever your project demands.
Maximum performanceLighthouse score 95+, Core Web Vitals in the green.
3 months of unlimited editsYou adjust freely, we stay by your side.
Want to go beyond Shopify (marketplace, B2B, complex subscriptions)?
SaaS MVP delivered in 6 weeks. Base: 1 business module, up to 5 screens, auth + Stripe payment. Tick your extra modules under each card to adjust the quote.
SaaS MVP · One-shot
For technical founders who want full independence. Source code handed over, platform accounts (Netlify, Supabase, Clerk, Stripe) transferred to your name, full onboarding training. You then manage everything yourself.
Base6 999€full delivery · one-shot
No monthly fees with us (you manage your infrastructure)
Clear scope included
1 business module · up to 5 screens
Clerk auth + Stripe payment integrated
Source code delivered (Git) + full documentation
2h onboarding training
6-week lead time
Standardised stack Next.js + Supabase + Clerk + StripeProven standards, easy for a senior dev to take over.
User authenticationEmail, Google, Apple. Forgotten passwords handled.
User dashboardClean, responsive interface, basic analytics.
Code & documentation deliveredYou take over, or another dev picks it up.
Post-delivery is your responsibility. No further guarantee (security, bugs, updates, monitoring) from the account transfer onwards. Recommended for technical profiles. Rassine maintenance can be activated at any time by switching to the Managed plan (from 179€/month).
Complex multi-module platform: business workflow, multi-tenant, advanced roles, public API, ERP integrations. Every project is unique, we scope together.
PriceOn quotereply within 48h
Free quote, scope defined together
For ambitious projects
Several interconnected business modules
Multi-tenant, roles, permissions
Documented public API
ERP / CRM / third-party tool integrations
Modular Next.js monolith architectureProven standardised stack, easy for another senior dev to take over.
Multi-tenant SaaSSeveral isolated organisations via Supabase Row Level Security, different plans.
Fine-grained roles & permissionsAdmin, manager, user, guest, etc. Managed by Clerk (SOC 2 Type II).
Public REST APIYour clients connect their tools. Swagger documentation provided.
Custom integrationsStripe Connect, HubSpot, Salesforce, ERPNext, Odoo via API.
iOS & Android app delivered in 8 weeks. Base: 1 main feature, up to 8 screens, store publishing included. Tick your extra modules under each card.
Mobile app · One-shot
For technical profiles who want to manage it themselves. iOS + Android app delivered turnkey, source code handed over, Apple and Google developer accounts transferred to your name, full onboarding training.
Base6 999€full delivery · one-shot
No monthly fees with us (you manage your infrastructure)
Clear scope included
1 feature · up to 8 screens
iOS + Android app (Capacitor, 1 codebase)
App Store + Google Play publishing
2h onboarding training
8-week lead time
iOS + Android at onceCapacitor + Next.js, consistent design on both OS, 1 codebase to maintain.
Store publishing includedApp Store Connect + Google Play Console handled.
Authentication & profilesEmail, Google, Apple Sign-in, forgotten password.
Push notificationsOneSignal or Firebase, user segmentation.
Code & documentation deliveredYou take over, or another dev picks it up.
Post-delivery is your responsibility. No further guarantee (security, bugs, OS updates, crash monitoring, store submissions) from the account transfer onwards. Recommended for technical profiles. Rassine maintenance can be activated at any time by switching to the Managed plan (from 229€/month).
Mobile app + admin web platform + API. For multi-stakeholder projects (delivery, marketplace, field management). Every project is unique, we scope together.
PriceOn quotereply within 48h
Free quote, scope defined together
For complete projects
Mobile app (iOS + Android)
Admin/management web dashboard
Custom API + third-party integrations
Geolocation, payments, real-time chat
Synced multi-platformMobile app + admin web share the same database.
Real-time geolocationMaps, delivery tracking, geofencing, etc.
In-app payments + StripeConnect for multi-seller setups if marketplace.
Custom Business Portal. Internal tool for networks, franchisors, multi-site groups or SMEs needing an application dedicated to a trade. Standardised stack Next.js, Supabase, Clerk. Can connect to an existing ERP (Odoo, ERPNext, Sage) via API.
For networks and multi-site SMEs
Business Portal · Managed
Custom business web application built on a standardised, certified stack. For franchisors, network heads, multi-site groups and SMEs needing a custom internal tool.
Base9 999€build cost
then from 399€/month depending on your usage (Growth 399€ up to 10,000 users · Scale 699€ beyond)
Rather than coding a custom ERP, we deploy and customise a mature open-source ERP (Odoo Community or ERPNext). Native security, proven framework, ready-made accounting/HR/stock/CRM modules.
From8 000€to 15,000€ depending on scope
then 199€/month maintenance and support
Included in the service
ERP install and configuration on a dedicated server
Module setup (accounting, sales, stock, HR, CRM)
Import of existing data
Creation of custom reports
2-day training + 30-day post-delivery support
Native open-source ERP securityOdoo and ERPNext used by millions of businesses, proven frameworks.
Ready-to-use business modulesAccounting, invoices, stock, HR, CRM, payroll. Enable what you need.
The outsourced IT department model. For SMEs with an ambitious 12 to 18-month tech roadmap who want a committed partner rather than a one-shot provider. 2 retainer levels depending on your intensity of needs.
Recommended · 4 projects and more
Tech Hub Premium · All Inclusive
The pack that covers all your tech over 18 months: 4 projects delivered in cascade, continuous maintenance, enhancements, priority support, quarterly security audits. 1 single contract, 1 predictable price.
Onboarding14 999€on signing
then 3 990€/month for 18 months minimum
Included in the retainer
Up to 4 projects delivered over the commitment
Continuous maintenance of all projects in production
Enhancements and fixes (reasonable volume)
Priority support 8am-5pm Sun-Thu (WhatsApp + email)
1 monthly strategic steering meeting
Quarterly security audit
18-month minimum commitmentMutual commitment, stable cash flow for you and for us.
Platform hosting includedNetlify, Supabase, Clerk, Sentry, Cloudflare, Resend, OneSignal up to 10k MAU.
Monthly steering meeting1h video call with open product and tech scoping.
Your need doesn't fit any box? We support you case by case: consulting, audit, troubleshooting, one-off project or time & materials. We scope it together and quote based on the real need, with no long-term commitment.
PricingOn quotetailored to your real need
No commitment · flexible format
What we can cover
Scoping your tech roadmap and stack choices
Audit of an existing system (code, security, performance)
Consulting, troubleshooting or a one-off mission
Fixed-price project or time & materials
100% tailored scopeWe start from your real need, not an imposed pack. You pay for what serves you.
Flexible formatOne-off, fixed-price project, or time & materials: we pick the right frame together.
No long-term commitmentNo mandatory monthly retainer. Ideal for a specific need or a first test.
Clear quote within 48hAfter a scoping call, you get a detailed, transparent estimate.
Gateway to the retainerIf the need grows, we move to a Modular or Premium Tech Hub plan.
Complete Identity + Pro Showcase (premium multi-page site) = 1 599€ instead of 1 698€. Launch your brand with total consistency, from logo to site, in 2 weeks.
Your customers can't find you? We fix that. Google, Meta, ChatGPT, Perplexity, Gemini: we make you visible wherever your prospects search. Traditional SEO, targeted advertising, and above all GEO: the new lever to exist in the answers of generative AI.
Local SEO & Google
SEO = Search Engine Optimization · organic ranking on Google
We get you higher on Google: organic SEO, Google Business profile, local keywords. Visible without paying for ads.
One-off audit690€SEO + GEO combined, payable in one go
Optional monthly follow-up at 149€/month
Included in the base
Complete SEO audit (technical + content)
On-page optimisation (titles, meta, structure)
Optimised Google Business profile
Keywords & initial positioning
Technical SEO auditSpeed, mobile, indexing, markup. We fix what's blocking Google.
Keywords & intentWe identify what your audience really types and position the site for it.
Google Business ProfileOptimised profile, photos, review management. +60% calls on average.
Local backlinksIndustry directories, local partners. Authority boosted without spam.
Local SEO + SEA media buying + GEO (ChatGPT, Perplexity, Gemini) bundled at 1 199€ setup instead of 1 298€. Base monthly fee reduced to 299€/month (SEA management only). Add follow-up options à la carte according to your priorities.
Custom automations. Connecting your tools, automating repetitive tasks, business workflows, syncing, AI agents. Every automation is unique: the price depends on your real need, we price it together.
Tailored to your need
Custom automation
We eliminate your manual tasks and make your tools talk to each other. Quotes, invoicing, reminders, data entry, reporting, syncing: whatever takes you hours, we automate.
PriceOn quotedepending on your need
Free quote within 48h
What we can automate
Connecting your software (CRM, invoicing, email, calendar…)
Repetitive tasks: data entry, reminders, exports, reports
Business workflows triggered automatically
AI agents and processing on your data
Audit of your processesWe identify what wastes your time and what can be automated.
Solution adapted to your toolsWe plug into what you already use, not the other way round.
Measurable time savingsHours recovered every week, fewer errors.
Support & follow-upWe train your team and stay available to keep it evolving.
Business software integration, hybrid platform, custom application, complete redesign... If your project falls outside the box, we prepare a free tailored quote within 48h.
Your projects are designed and built by engineers. Custom-built for your trade, never a recycled template.
02 · Simplicity
A coordinated team
From the first conversation to delivery, you speak directly to the team working on your project. No middleman, no jargon.
03 · Transparency
Clear prices from the start
You know exactly what you pay and what you get, before you start. A clear quote, approved together.
04 · Follow-up
Present after delivery
We stay by your side once the project is delivered: follow-up, adjustments, enhancements. Your success doesn't end at launch.
Appointment
Book a free slot
30 min by video to understand your need, show you concrete examples and see if we can help. Zero commitment.
Your questions, our answers
Hiring an agency makes you hesitate. That's normal.
We answer honestly the questions most businesses ask before getting started.
It's going to cost too much, isn't it?
It's the first fear, and it's legitimate. The truth: a good digital tool isn't an expense, it's an investment that pays off (more customers, time saved). We display our prices clearly, we frame the budget with you before starting, and several plans are payable monthly to fit your cash flow. You decide with full knowledge, never a nasty surprise.
Will I lose control of my project?
No, the opposite. On the one-shot plan, your project belongs to you: the site, the code, the access, the domain names, everything is yours. On the monthly plan (fully managed), we handle hosting and maintenance for as long as you're supported, and you can switch to purchase at any time to become the owner of the code. In both cases you approve every step and stay in control, never locked in.
Will an agency vanish once it's been paid?
Our trade is the long-term relationship, not the one-off. Once your project is delivered, we stay available: adjustments, enhancements, questions. Most of our clients come back to grow what we built together. You always speak to the same team, the one that knows your project.
Wouldn't hiring someone in-house be better?
Recruiting a competent developer is slow, expensive and risky, especially for a one-off or evolving need. With us, you get access to a complete team of engineers (web, mobile, software, automation) when you need it, with no fixed overheads or HR management. You scale up when needed, you slow down when it's quiet.
I'm not comfortable with the technical side, is that a problem?
Not at all, that's exactly the point of delegating it to us. You stay the expert in your trade, we handle the whole technical side and explain it to you simply, with no jargon. All you have to do is tell us where you want to go, we take care of the journey.
How does it work to get started?
Very simply: you contact us and we talk (15 to 30 min) to understand your need. We come back to you with a clear proposal and a transparent quote. If it suits you, we get going. The first conversation is free and with no commitment, you risk nothing by talking it through.
Available · 2 new projects this month
Let's talk about your project, free and with no commitment.
Tell us in a couple of words what you need. We'll get back to you within 24h to discuss it, understand your project and see how we can help.
