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Services / Web apps

Custom web apps for business - tools for specific tasks

I create custom web apps for business when a simple subpage or a form is not enough. These can be calculators, configurators, interactive tools, mini-apps, or simple panels to organise work.

calculators from 799 zł configurators mini apps frontend and logic
799
Calculator from
999
Tool from
3
Solution types
11+
Years of experience

Choose a page type

Every project is priced individually. Below are indicative ranges - send an inquiry and you'll get a specific amount within 24h.

Interactive web tools

Custom interactive web tools help the client do something immediately on the website: calculate costs, choose variants, take a quiz, compare options, or generate a result. I design them to be easy to use and fit the real sales process.

from 2 999 zł depends on scope
  • Interactive web tool
  • Configurator / quiz / survey
  • Responsive interface
  • Data collection and export
  • Website embedding
  • User manual
  • User account
Learn more
POPULARNE

Website calculators

A website calculator helps the client calculate an estimated cost, choose a service variant, or check profitability before sending an inquiry. A well-designed calculator doesn't replace a conversation, but it makes the first message from the client more specific.

from 1 499 zł 10-21 days
  • Calculator for your website
  • Logic and pricing formulas
  • Responsive interface
  • Result on screen / email
  • WordPress embedding
  • Editing instructions
  • CRM integration
Learn more

Mini web apps

Custom mini web apps are simple tools running in the browser: a client panel, generator, form with logic, dashboard, small internal system, or a website module. I design them when a regular subpage or a WordPress plugin is not enough.

from 1 999 zł depends on scope
  • Mini web app
  • Logic for your process
  • Responsive interface
  • Panel / input data
  • Website embedding
  • User manual
  • Mobile app
Learn more

Why Idea For Design instead of an agency?

Logic tailored to the process

I start with the operating rules: what data goes in, what needs to be calculated, what the user gets, and what goes to the owner.

Easy-to-use interface

The tool must guide the user through the task. If every step needs explaining, the project requires simplification.

More enquiries from the same page

A calculator, quiz, or configurator can keep the user engaged longer and turn uncertainty into a specific enquiry.

Scope without overcomplication

I don't build an extensive system if one well-designed tool is enough. The scope must fit the budget and the goal.

What does working together look like?

I take the website from business goal to launch - you don't just get a pretty layout, but a tool that explains your offer and makes it easy for clients to reach you.

1

Task description

We determine who will use the tool, what data they will enter, and what result they should get.

2

Mockup and logic

I write down fields, conditions, calculations, messages, and the user journey.

3

Implementation

I build the tool, finalise interactions, validation, responsiveness, and potential data submission.

4

Testing

We check typical and unusual scenarios, improve messages, and only then do we publish.

Ready to start? Shall we start?

Send an inquiry

Frequently asked questions

Answers to the most common questions about building websites.

How does the cooperation work?
I start by describing the process and the goal of the tool. Then I write down the logic, prepare the scope, implement the app, and we test it on examples from your company.
How long does the implementation take?
A simple calculator can be created in a few to a dozen days. A configurator, a tool with many conditions, or a mini-app requires an individual deadline.
How many revisions are included in the price?
Revisions cover refining the agreed logic, texts, fields, and interface. New features, additional integrations, or changing the operating rules are priced separately.
What are the payment terms?
After accepting the scope, I issue an advance invoice. Once implemented, tested, and approved, we settle the remaining part of the project.
How to get in touch?
Write to kontakt@ideafordesign.pl and describe what the tool should do. It is best to provide an example of the calculation, process, or form you want to improve.
Web apps - frequently asked questions

Got a project idea? I'll send a quote within 24h

A website, store, graphics or illustration - tell me what you need and you'll get a specific quote with a timeline. No vague talk, no obligations.

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