Logic is the beginning of every good solution.

Software development

We work from specification to delivery. The goal is code that still reads clearly a year later, when you come back to it.

• 01.1

  Mobile applications

  iOS and Android from a single codebase, or native when performance and hardware access call for it.

  • React Native
• 01.2

  Web applications

  Marketing sites, portals and internal tools. Load speed and accessibility are part of the work, not an add-on.

  • React
  • Next.js
  • TypeScript
  • PostgreSQL
• 01.3

  Desktop applications

  Tools for Windows, macOS and Linux — where a browser is not enough or the work has to run offline.

  • Tauri
  • Electron
• 01.4

  WordPress websites and plugins

  We build business and marketing WordPress websites, along with custom plugins that extend their functionality.

  • websites
  • plugins

Mathematics education

Teaching that explains why, not only how. We work one to one and in small groups.

• 02.1

  Competition preparation

  Work on problems from municipal, district and national competitions, covering problem types systematically.

  • Primary school
  • Secondary school
• 02.2

  Entrance and final exams

  The syllabus is covered in order, with work on past exam papers and regular timed mock tests.

  • Entrance exam
  • Final exam
• 02.3

  One-to-one tutoring

  A programme paced to the student, with a measurable goal for each week and regular feedback to parents.

  • 1-on-1
  • COMING SOON Online

Method

The order of these steps is not a matter of taste — each one depends on the last. It is the same for a maths lesson and for a project.

1. 01

   Definition

   State the problem exactly. A vaguely stated condition is an unsolvable problem.

2. 02

   Model

   Choose the structure that makes the problem solvable: a proof, an algorithm, an architecture.

3. 03

   Derivation

   Write the solution. Every step has to stand on its own, without appealing to intuition.

4. 04

   Verification

   Test against the edge cases. A solution that is not checked is not a solution.

About us

4D Studio works at the intersection of two disciplines that rarely sit in the same company: teaching mathematics and building software. That is not an accident — both demand the same kind of attention to detail.

When we teach, we do not move to the next step until the previous one is clear. When we write software, we do not ship until the behaviour is verified. It is the same procedure applied to two materials.

We work with a small number of clients and students at a time. That is deliberate: quality of attention does not scale.