5 Projects

Five services,
all running in production.

Not demos and not mockups: every one of these addresses has search traffic, users and bills we either pay ourselves or settle with a client each month. Below is what they do — each one has its own page.

Case 01 live 2026

Świadectwo Energetyczne 24

swiadectwo-energetyczne24.plService portal

Energy performance certificates ordered online: a questionnaire, payment, and a finished document from a licensed assessor. 1–2 business days as standard, eight hours in express mode.

26,000+certificates issued
650+partners and estate agencies
8 hexpress turnaround
  • online ordering
  • payments
  • national register
  • assessor network
  • 18 cities

Read the case study swiadectwo-energetyczne24.pl

Case 02 live 2026

OpenBookRank

openbookrank.comOwn product

Book rankings computed from open sources reduced to a single scale. Plus reading order for series — the question the internet answers worst.

1,423books ranked
854,800ratings behind them
6languages in production
  • rankings
  • series and order
  • 32 categories
  • 6 languages
  • open data

Read the case study openbookrank.com

Case 03 live 2026

Kalkulatory Płace

kalkulatory-place.plOwn product

Thirty-four calculators on 2026 rates: gross-to-net, contracts, B2B, VAT, credit, pensions. Everything is computed in the browser — the figures you type never leave your device.

34calculators in six categories
169occupational groups from GUS data
0data points sent to a server
  • gross-to-net
  • B2B and VAT
  • credit
  • GUS data
  • privacy

Read the case study kalkulatory-place.pl

Case 04 live 2026

Licea Progi

licea-progi.plOwn product

A points calculator for Polish secondary school admissions that counts the way the board does, plus past thresholds, remaining places and city data for over three thousand schools.

3,100+schools in the database
335cities with a dedicated page
200 ptsthe statutory algorithm
  • points calculator
  • thresholds
  • remaining places
  • 335 cities
  • GUS data

Read the case study licea-progi.pl

Case 05 live 2026

Szkolni Bohaterowie

szkolnibohaterowie.plEducation portal

Free lessons for Polish primary school, grades 1–8, in maths, physics, chemistry, biology and geography, mapped to the national curriculum. Tasks with hints, spaced repetition and a mock eighth-grade exam — no ads and no account required.

738lessons in five subjects
5,000+tasks and questions
0ads and fees
  • grades 1–8
  • national curriculum
  • spaced repetition
  • eighth-grade exam
  • no ads

Read the case study szkolnibohaterowie.pl

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