mFox

MAP APPLICATIONS
built for you.
First version in days.

Petr is a GIS specialist, Tomáš a software architect. Together we build web map apps and spatial-data tools - fast, with AI coding agents and under full engineering control.

Book 30 min on your data
Our work

Who we work for

Municipalities & public sector

Greenery registers, citizen feedback maps or zoning plan viewers - on national open data and your own layers.

Greenery register

Site & utility managers

Defects, contracts and utilities scattered across spreadsheets and drawings? We put them on one map your maintenance team can use in the field.

Airport register

Software companies

You need a map or geodata API in your product without hiring a GIS team of your own.

Load zone maps

Projects & data

You have research or project data and want to show it to people: points over time, the links between them or your own story on a map.

Heritage Conservation Map

How it works

  1. Consultation

    30 minutes

    We go through your problem and the data you have. No commitment. We'll also tell you if we're not the right fit.

  2. Prototype on your data

    days

    A clickable first version on your own data. You see right away whether we're heading the right way, and you have a basis for decisions.

  3. Application

    weeks

    A production version with tests and documentation at a fixed price. The code lives in your repository from day one.

  4. Hosting & development

    long term

    Hosting with us or on your side, updates and further development. We have been running many of our apps for years.

How we work with AI

Our work

Map applications people use every day.

Main case studies
Heritage Conservation Map
Heritage Conservation Map

People, associations and cases of Czech heritage conservation from 1900 to 1960 on one map. It shows who worked where and how people, institutions and cases were connected.
Prague Zodiac Chart
Prague Zodiac Chart

An interactive map that lays the zodiac over the ground plan of Prague and, for a given date of birth, draws the planet lines across the city - showing which churches and monuments they pass through.
Předinženýring
Předinženýring

A map inside the order form where customers find an address and click to select parcels from the Czech land register. The selected plots go straight into the order.
Wind farm site map
Wind farm site map

A map application for JRD Energo that showed landowners within moments whether their plot was suitable for building a wind turbine.
Load Maps
Load Maps

Structural engineers used to look up climate load values in national standards. Now they find them on a map, anywhere in the world.
Sport Calendar
Sport Calendar

Thousands of matches and sports events from dozens of associations in one place, searchable by location, date and club.
Airport records
Airport records

Airport management sees every defect, contract and utility line - online, nothing to install.
Green vegetation records
Green vegetation records

Based on real requests of municipal urban green keepers, we have developed a map application that makes their daily work easier. Consequently, the app was awarded the first place in the Apps4Europe competition for the Czech Republic.
How we work with AI
How we work with AI

We develop agentically with Claude Code. An AI agent writes most of the code; we do what no model does for us: requirements, architecture, data checks and review of every change.

That lets us deliver much faster - you see a first version on your data within days and a finished application within weeks. Speed doesn't come at the cost of quality: every line of code we hand over has passed automated tests and human review.

Below is exactly how it works in practice and which safeguards we use.
Accident rate maps
Accident rate maps

About 5 000 crashes of vehicles with animals are reported in the Czech Republic every year and the material damage caused by such accidents recorded by Police Czech Republic exceeds the amount of 150 million CZK per year.
Himalayan tigers
Himalayan tigers

Himalayan tigers app belongs to thematic map apps that include records about successful mountaineering climbs of Czech and Slovak professional expeditions in the Himalayas since 1969.
Brewery Map
Brewery Map

Do you prefer the beer brewed in mini-breweries to the “Euro-beer”? Do you know what the most frequented beer on the tap in your region is?

You can find the answers in our Brewery map app!
From spatial data to a map to an application

Ready, steady, GO!

That's how we started more than ten years ago: our first web map application, a municipal greenery register, won first prize in Apps4Europe. Since then we have built map applications for engineering software vendors, an airport, sports associations and municipalities - and we still run some of them today.

Today there's a new pace. We develop agentically with AI (Claude Code), but this is not “vibe coding”: requirements are written before the first prompt, every change is reviewed by a human, the code is tested and sits in your repository from day one. That's how we deliver in days what used to take weeks - and we know exactly what we build and why.

Petr & Tomáš

Petr Schiller - GIS & product. 20+ years in geoinformation technologies. Knows spatial data, cadastres, coordinate systems and how a facility manager or an engineer actually works. He shapes the brief with clients and makes sure the app solves the right problem.

Tomáš Hůlek - architecture & engineering. 20+ years building web and map applications - from map portals for Prague City Council and the Czech Police to live sports visualisations for William Hill. He designs the architecture, builds the apps and runs AI-agentic development so the result meets professional standards - tests, reviews, documentation.

You work directly with both of us. No sales layer, no junior hand-offs. We take on few projects at a time so each gets full attention.

GIS & spatial data

AI-agentic development

You own the code

What we do

Custom web map applications

Map components & geodata for software products

Asset registers for sites, utilities & greenery

GIS analysis & data processing

Rapid prototypes on your own data

Taking AI-built prototypes to production

Hosting, maintenance & further development

MapLibre migration & map app audits

What clients say

It's fun to work with the mFox team. Mr. Schiller was able to understand our initial idea of a load maps for civil engineers without exhausting discussions and transfers it into usable geodata. The collaboration made it clear that he understands his craft and also sends further development impulses. With almost blind communication, we were able, among other things, to place a successful interactive map project on the web with the help of his expertise.

Dlubal Software s.r.o.

Dlubal Software s.r.o.

Petr handled the requirements of the individual sports associations, and thanks to his solution sportmap.cz shows thousands of sports events and matches across the Czech Republic on a map every day. He also keeps the application running smoothly. (translated from Czech)

sportmap.cz

sportmap.cz

LSHK uses the mFox web map application mainly to optimise maintenance at Hradec Králové airport. We see it as an invaluable help in carrying out and checking repairs. Its data archive also helps us analyse places with recurring defects, so we can apply preventive measures in time. (translated from Czech)

Letecké služby Hradec Králové a.s.

Letecké služby Hradec Králové a.s.

We work with Petr on a number of interesting projects. When it comes to map applications, they are true professionals. Regular meetings, both in person and online, keep things efficient and to the point. Highly recommended. (translated from Czech)

FIRA Media s.r.o.

FIRA Media s.r.o.

Petr, Tomáš and the mFox team handled my very unusual brief professionally. It started as a rough sketch and kept changing during development, so I'm grateful that their patient, understanding approach helped us create an original, working interactive map application that stays simple for end users despite its complexity. They are pros who know what they're doing. Definitely recommended. (translated from Czech)

Michal Maryška

Michal Maryška

Our wedding wish was to plant a new forest! The mFox team loved the idea and turned the whole wedding website into an interactive map where every guest could plant any number of trees as a gift. True professionals who really understand their craft. (translated from Czech)

Kinský dal Borgo, a.s.

Kinský dal Borgo, a.s.

I have to thank mFox. Despite my complex requirements, they built a friendly application that my colleagues appreciate for its simplicity. Thank you! (translated from Czech)

Plynsensor s.r.o.

Plynsensor s.r.o.

FAQ

Do you use AI? Isn't that “vibe coding”?

Yes, we develop agentically with AI (Claude Code). No, it's not vibe coding. Requirements and acceptance criteria come first, every change is reviewed by a human, the code is tested and deployed continuously. AI speeds up writing code; architecture and quality decisions are ours.

How fast can you deliver?

You'll see a first working version on your data within a few days. A finished application ships in weeks, not months. You get a firm deadline with our quote, and we keep it.

How much will it cost?

We work at a fixed price, not by the hour. Tell us what you need to solve and we'll send an estimate within a few days. Larger projects start with a short scoping of the brief and data.

Who owns the code and data?

You do. The code lives in your repository from day one, data stays with you or on a server of your choice. We don't send sensitive data to AI tools.

Do you work with clients outside the Czech Republic?

Yes. We work remotely in English and Czech and invoice in EUR or CZK.

Which technologies and data do you use?

We cover the whole chain - from raw data to the map in your browser. We build apps in TypeScript, React and Next.js, process spatial data in PostGIS, QGIS and GDAL, and render maps with MapLibre, OpenLayers or Leaflet. We know Czech data and standards: S-JTSK (EPSG:5514), ČÚZK web services (WMS/WMTS), RÚIAN, ZABAGED, digital technical maps (DTM, JVF) and INSPIRE metadata. Modern formats such as vector tiles (PMTiles), COG and GeoParquet cut running costs - a map portal often needs no map server of its own. Open source means no licence fees, but we're just as comfortable with GeoServer, Mapbox or your ArcGIS (Esri) setup.

Where we started

Apps4Europe 2014 - 1st place Apps4Europe 2014 - 1st place
European Satellite Navigation Competition 2014 - 5th place European Satellite Navigation Competition 2014 - 5th place
Open Society Fund - 6th place Open Society Fund - 6th place