Simulators & calculators

A tool that captures your customers

A simulator or calculator on your site keeps visitors engaged, helps them out and captures their contact details. A salesperson working for you, day and night.

Tell me about your project
Estimate my income
Price / night150 €
Number of nights3
Your net income 432 €

From idea to a tool on your site

You have nothing technical to handle. We design the tool and I integrate it for you.

We understand your need

Which calculation, which fields, which result. We start from what's genuinely useful to your customers.

See my result
your@email.com OK

We capture the leads

A form collects the visitor's email before the result. You get a contact who's already interested.

24/7 hands-free

It works for you, all the time

Once it's live, your tool runs on its own. It helps your visitors out, builds their trust and brings you qualified leads, without you having to do a thing.

Examples you can try out

Tools I've built for real clients. Play with them, they're 100% functional.

Built for Conciergerie Vesna

Airbnb revenue calculator

Estimates what a property earns in short-term rental, with commissions deducted.

Prix par nuitée (€) ?Pour estimer votre prix par nuitée, utilisez le simulateur Airbnb.
Frais de ménage (€) ?Frais prélevés directement au voyageur via la plateforme de location. Vous ne les payez pas.
Commission conciergerie ?Commission conciergerie appliquée sur le total net après déduction de la commission Airbnb.
20%
Commission conciergerie
20% du total net
Votre revenu net
Avant impôts
Prix payé par le voyageur
Frais Airbnb inclus
Récapitulatif de la réservation
Estimation basée sur vos informations
Hébergement 0 nuit(s) × 0,00 € 0,00 €
Frais de ménage Montant fixe par séjour 0,00 €
Frais de service Airbnb voyageur ~15% facturés au voyageur 0,00 €
Built for Auctus Comptabilité

VAT calculator

Converts pre-tax to tax-inclusive amounts in one click, with the right rate for the activity.

Calculateur de TVA

Convertissez HT ↔ TTC en un clic, à tous les taux applicables.

Cette activité est exonérée de TVA. Le montant TTC est égal au montant HT (article 261 du CGI).
Montant HT 1 000,00 €
Montant de la TVA 200,00 €
Montant TTC 1 200,00 €
Je veux un outil comme ça
Built for Auctus Comptabilité

Budget estimator

Estimates the cost of an accountant based on the company's profile.

Estimateur de budget expert-comptable

Estimez votre budget annuel en 2 minutes. Affinez ensuite avec un devis personnalisé.

Budget annuel estimé (HT)

1 500 € — 2 500 €

Fourchette indicative, à affiner selon le volume réel d'opérations comptables et la complexité de votre activité.

Mission ponctuelle (création/cession/fermeture) : 800 € — 2 500 € en complément.
Built for Conciergerie Vesna

Interactive map of French départements

A clickable map showing, département by département, the cities affected by the regulation.

Want a tool like this on your site?

Tell me about your project

Why an interactive tool in 2026

A visitor who plays with a tool stays longer, understands their situation, and leaves you their contact details. All without you lifting a finger.

2x

2x longer on your page

A tool holds attention, text scares off.

🌙

Leads even at night

Contacts captured 24/7.

🎯

Prospects already warm

Whoever runs a simulation is ready to buy.

From need to a tool that's live

A simple process. You describe, I build, you test.

1

A first conversation

We define the tool your customers need and what it should calculate.

2

I build and we fine-tune

I create the tool, you test it, and we refine it together until it's just right.

3

I integrate it into your site

The tool goes live, ready to help out and capture contacts.

Two options to suit your needs

One tool for a specific need, or a set of tools for several pages.

One-shot

A custom tool

On request

A simulator or calculator designed and integrated on your site, built around your business.

The pluses
  • Custom-built for your business
  • Designed in your brand style, integrated for you
  • Email capture as an option
Good to know

The price depends on how complex the calculation is. Let's talk to scope the right tool at the right price.

Several tools

Tool pack

On request

Several simulators for different pages or different needs, in a consistent style.

The pluses
  • Several tools at once
  • A consistent style across the whole site
  • Volume pricing
Good to know

Ideal if you have several services to showcase. We'll define the list of tools together.

Not sure which tool you need? Let's talk, and I'll point you in the right direction for your business.

Tell me about your project
+30 clients helped

You benefit from 5 years in the field across dozens of different industries. What worked for them can work for you.

🎯 First call free

We talk first, no meter running. I look at your situation and tell you honestly what I can do for you.

No commitment

No binding contract to sign. If it doesn't work as planned, we stop. Simple.

What people often ask me

Is it complicated to put on my site?

No. I handle the entire integration. You have nothing to code or install.

Does it work on mobile?

Yes. Every tool is built to work just as well on a phone as on a computer.

Does it really capture contacts?

Yes. We can add a form that collects the visitor's email before showing the result.

Can I update it later?

Yes. We can change the fields, the calculation or the design whenever you like.

How much does it cost?

It depends on how complex the calculation is. We look at your need and I give you a clear quote.

See my other services

A tool captures your visitors. Here are the other levers to bring them all the way to you.

🌐

Build the website

Discover
🔎

Show up on Google & AI

Discover
✍️

Attract through the blog

Discover
🎨

AI visuals creation

Discover
📧

Retarget with the newsletter

Discover
📰

Press & Wikipedia

Discover

Tell me about your business.

Sofia

No jargon, no commitment. I look at your situation and tell you exactly what I can do for you.

What happens next

01

I review your website, your social media and your newsletter.

02

I call you to understand your top short-term goal.

03

I send you a free document with the strategy I recommend.

  • Reply within 48h
  • Available in French, English and Russian
  • No commitment
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