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Custom application

From idea to screen, with nothing lost along the way.

Booking, client portal, internal tool or the first version of a project: the screens are designed and developed by the same person, on a scope and a price written down before the first line of code.

Let’s talk about your projectSee the options

Pricing

Two starting points.

First version

Test your idea

The essential screens of your project, designed then developed, live so they can be shown.

On quote

  • Limited to what proves the idea holds up
  • A live version, to show your clients or partners
  • A foundation that can be extended, without redoing everything
Business tool

Save time

Booking, client portal or internal tool, built around the way you already work.

On quote

  • Your requests gathered in one place
  • Less manual data entry
  • Access for you, your teams or your clients

The price depends on the number of screens and features. It is set during the call, on a written scope, and doesn’t change once the quote is signed.

Who it’s for

Sound familiar?

You’re launching a project

“The agency asked for a fortune, the freelancer vanished halfway through.”

An application is won or lost between the mock-up and the code. When two people handle it, what was planned isn’t what gets delivered.

You manage everything by hand

“Bookings come in by WhatsApp, by e-mail and by phone.”

Every request is copied out by hand, and that’s where the mistakes come from. A tool made for your business brings everything into one place.

Your clients are waiting for updates

“People write to me every day to ask how a file is progressing.”

A client portal answers for you: progress, documents and invoices, available without having to write to you.

The details

What your project includes.

Included

  • A scoping call to turn the idea into a list of screens
  • A written quote: screens, features and price
  • The screens designed, then developed by the same person
  • A live version, checked on mobile and desktop
  • Two rounds of revisions per deliverable
  • Usage rights to what is created for you, transferred once the service is paid for

Not included

  • Hosting and third-party services (payment, e-mail, storage), in your name
  • Features outside the scope: each one gets its own price
  • Publishing on the app stores: priced during the call
  • Maintenance: priced according to the application

What changes

What won’t happen to you here.

What was planned isn’t what gets delivered.
The screens are designed and developed by the same person. What you approve is what gets built.
The quote doubles halfway through the project.
The scope and the price are written down before the first line of code. An extra feature gets its own price, which you accept or not.
You pay for months of work without seeing anything.
You approve the screens before the code, then you test a live version.
The project slips out of your hands once it’s finished.
The accounts are in your name, and the rights to what was created for you are transferred to you once the service is paid for.

Work

An internal tool, an application in progress, a live website.

All case studies
seller-rank.com · demo
SELLER-RANK dashboard in demo mode, with fictitious products
Internal toolApplication

SELLER-RANK, e-commerce management tool

Profitability per product, stock, invoicing and advertising brought together in a single dashboard, mobile included. Shown here in demo mode, with fictitious data.

Read the case study →
Home screen of the Madrassa mobile application
ApplicationIn progress

Madrassa, mobile application

Guided lessons, word of the day and conversation with an AI tutor. Design and interface in progress, presented in detail on request.

Read the case study →
madrassaonline.com
Madrassa Online home page
Custom-builtSEO

Madrassa Online

The website that comes before the application: method, bookshop and waiting list, brought together on a custom-built site.

Read the case study →

How it works

Four steps, one point of contact.

01

Scoping call

Your idea or the way you work, and what the tool should save you.

02

Scope and quote

The screens, the features and the price, written down before we start.

03

Screens, then code

You approve the screens, then I develop them. Two rounds of revisions are included.

04

Launch

A live version, tested with you, and my WhatsApp for what comes next.

Frequently asked questions

Before you sign.

How much does an application cost?

It depends on the number of screens and features. The price is set during the call, on a written scope, and doesn’t change once the quote is signed. To start on a tight budget, we can begin with a first version limited to the essentials.

Web application or mobile application?

A web application opens in the browser, on phone and computer alike, without going through the app stores: it’s the most direct way to test an idea. The mobile application is decided once the use is confirmed. We decide during the call.

I only have an idea, no specification.

That’s a normal starting point. The call is there to turn the idea into a list of screens and features; that written scope becomes the quote.

Does the project belong to me?

The hosting and service accounts are in your name. The usage rights to what was created for you are transferred to you once the service is paid for. Third-party components keep their own licences.

Next step

Let’s talk about your project.

Thirty minutes to scope your idea and find out what it costs. The call is free.

Book my free call

The call is booked on WhatsApp. Prefer to write? e-mail

All prices are on the page Packs & Pricing.