Custom business application developmentSoftware made foryour wayto work
Customer portal, quote management, case tracking, simulator, internal tool or private SaaS: I develop the application that replaces your spreadsheets and connects your software. AI accelerates work, I guarantee quality.
Describe my applicationSee a real-life case
- Response within 24 hours
- Free quote
- A single point of contact
+ of 700 projects
produced since 2012
4,75/5 on Google
Certified Partner
Google Partner and Microsoft Advertising
France and international
including Switzerland, Luxembourg, Spain
What is a business application?
A business application is software designed for a company's processes: its data, its rules, and the rights of each user. It is most often used in a browser, on a computer, tablet, or phone.
When do you need it?
- Your business relies on shared spreadsheets that have become unreliable.
- You re-enter the same data into multiple software programs
- The information is scattered across emails, files, and tools.
- Commercial software forces you to bypass it
- Your clients are requesting access to their documents or their records.
- The cost per user of your subscriptions is increasing
What I develop
From a small internal tool to the platform with customer accounts, payments and APIs.
Customer portal and extranet
Private SaaS
Custom Plugin
Simulator and configurator
API and software connection
ContactLook: a business application in 15 business days
A private B2B prospecting platform: starting from the name of an international group, it identifies its subsidiaries, finds local decision-makers and enriches their contact details, with the source and date of each data point.
15 working days
from analysis to production
30+ API routes
protected by user rights
approximately 20 tables
with source and date of each data point
13 test suites
automated before each delivery
Other applications delivered
View the entire portfolio
Custom WooCommerce plugin: EAN and AI import | IotawebIotaweb develops your custom WordPress plugins, like this WooCommerce plugin which creates SEO product pages from an EAN or URL with the Claude AI.
Creation of an auction websiteWooCommerce auction site for destockage.io: Auction Pro, real-time bidding, immediate purchase, conversational AI and margin calculation.
Energy work simulatorWebsite with energy work simulator: online calculation, account created without a phone number, quote within 48 hours in the customer area.
International Recruitment AgencyRedesign of a Microsoft recruitment agency's website: WPJB job board, freelance profiles, filters, LinkedIn SSO and CV submission.
Interactive site for members and subscriptionsIotaweb case study: WordPress recipe site with member area, monthly Stripe/PayPal subscription, favorites, ebook and newsletter.
Create an online booking websiteTransport and hotel booking site: step-by-step form, Google Places auto-completion, semi-automatic quote and summary PDF.Spreadsheet, off-the-shelf software or custom-made?
Custom solutions aren't always the right answer. I'm telling you this if an existing tool is sufficient.
| Criteria | Spreadsheet | Software on the market | Custom application |
|---|---|---|---|
| Adaptation to your processes | High-quality, but fragile | Limited to its options | Complete |
| Starting cost | Very low | Weak | Higher |
| Cost over time | Time and errors | Subscription, often per user | Maintenance and upgrades |
| Rights and traceability | Weak | As provided by the publisher | Defined according to your needs |
| Connecting to your tools | Manual | According to the publisher | Developed for you |
| Property | Your files | Publisher's license | You remain the owner |
For simple needs, no-code may suffice. See the no-code vs. development comparison.
What budget should be allocated for a business application?
These benchmarks for the French market provide a general idea. Your quote will depend on your scope, item by item.
| Application type | Content | HT marker |
|---|---|---|
| First simple version | Internal web application, few integrations | €10,000 to €30,000 |
| Core of the process | Multiple profiles, workflows, ERP or CRM integrations | €30,000 to €80,000 |
| Complete ecosystem | Web, mobile, customer portal, synchronization | €60,000 to €150,000 and more |
Fenxi benchmarks, article updated on October 31, 2026. The cost depends mainly on the number of screens, profiles and business rules, integrations, and the choice between web and mobile.
How is your project progressing?
Each service is governed by a contract, and you validate progress at each cycle.
1. Specifications
Together we will define your needs so that we can estimate them and choose the right method.
2. Detailed quote
You will receive a list of interventions, item by item, before any commitment.
3. Shared Planning
The steps and deadlines are written down: you know where your project stands.
4. Online publication
The project is reviewed, then published once you have approved it.
5. Monitoring results
You can check your traffic and visibility trends whenever you want.
6. Continuous improvements
Regular A/B testing and adjustments to ensure your project continues to progress.
This is planned from the design stage
A useful application is also a secure, traceable, and easily scalable application.
- Accounts, roles and data are compartmentalized and controlled on the server side.
- Secure API and encrypted keys
- Logs and traceability of actions
- Automated testing on key routes
- Display optimized for phone and computer
- GDPR compliance
- Possible upgrades via modules

Anthony Ménard, founder of Iotaweb
Your project is in good hands, and always the same ones.
After working in an agency, I launched my own business in 2012. I run Iotaweb from Ploumagoar, near Guingamp. You give me your objectives, I take care of all the technical aspects, and I keep you informed of the progress.
A single point of contact
From the first call to the online launch, I am the one who manages your project.
AI-accelerated, verified at every step
AI saves time, I retain control over quality and safety.
In France and internationally
Everything is done remotely, wherever you are.
What my clients say
4.7/5 based on 25 Google reviews«"He finds solutions and is a great listener. He's been managing my website for several years now, and I have nothing but praise for him."»
«"He was very responsive, very professional, understood immediately what was required and carried it out without any problems. We have continued to collaborate ever since, and it's going very well."»
«"Everything was quick and clear. Anthony is very professional."»
Your questions about the business application
I also answer calls by phone at 06 34 15 00 51.
Your application can also include’artificial intelligence.
How much does a custom business application cost?
As a guideline, a basic initial version costs between €10,000 and €30,000 excluding VAT, and a core process application between €30,000 and €80,000 excluding VAT (Fenxi, October 2026). You will receive a free, detailed quote within 24 hours for your specific needs.
How long does it take to develop a business application?
The timeframe depends on the scope, the access provided, and the number of connections. ContactLook was completed in 15 business days, from analysis to production deployment. Your schedule is provided at the outset.
Can a business application be developed on WordPress?
Yes, when it's relevant. WordPress provides the accounts, permissions, and a REST API, and the business logic is handled by a custom plugin. I also develop without WordPress when it doesn't offer any additional benefits.
Web application or mobile application?
A responsive web application works on phones, tablets, and computers, and remains the cheapest way to get started. Native mobile development is justified for certain uses, but it increases the budget.
Do I own my application?
Yes, you remain the owner. You can change service providers whenever you want.
Can you connect my ERP or CRM?
Yes, if it has an API. Without an API, I'm looking for another way, like an export or a connector. Describe your software so I can check it out.
Can you take over an existing application?
Yes. I take over existing projects to correct them, secure them, develop them further, or finish what was started elsewhere.
Can the application then be commercialized?
Yes. This is the case with the WooCommerce AI Importer plugin, which is sold with a per-domain licensing system.
Describe your application
Tell me what's wasting your time today. You'll receive a response and a free quote within 24 hours, wherever you are.

Anthony MénardI read and respond to each request myself.
- 06 34 15 00 51
- 2 Impasse Kerlaino, 22970 Ploumagoar
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