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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

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.

Internal management tool

Quotes, files, stocks, schedules, team tracking and lightweight CRM, with your own rules.

Customer portal and extranet

Your customers log in to track a case, retrieve their documents or place an order.

Private SaaS

Segmented accounts, rights, quotas, history and exports, for your team or your clients.

Custom Plugin

WordPress or WooCommerce, for internal needs or for a product to be marketed under license.

Simulator and configurator

Online calculation, instant quote, guided process and customer account.

API and software connection

ERP, CRM, payment, invoicing, marketplaces and data services.

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

View the projectDescribe my application

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.

CriteriaSpreadsheetSoftware on the marketCustom application
Adaptation to your processesHigh-quality, but fragileLimited to its optionsComplete
Starting costVery lowWeakHigher
Cost over timeTime and errorsSubscription, often per userMaintenance and upgrades
Rights and traceabilityWeakAs provided by the publisherDefined according to your needs
Connecting to your toolsManualAccording to the publisherDeveloped for you
PropertyYour filesPublisher's licenseYou 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 typeContentHT marker
First simple versionInternal web application, few integrations€10,000 to €30,000
Core of the processMultiple profiles, workflows, ERP or CRM integrations€30,000 to €80,000
Complete ecosystemWeb, 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, fondateur d'Iotaweb
Since 2012
over 700 projects4.7/5 on Google

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.

Entrust my project06 34 15 00 51My LinkedIn profile

«"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."»
Betty Sèvre, Google reviews
«"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."»
Lodges Beg Leguer, Google reviews
«"Everything was quick and clear. Anthony is very professional."»
Mattberthou - Advice, Google reviews

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 Ménard

Anthony MénardI read and respond to each request myself.

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