Indie software studio · Sweden

We build digital solutions

Apps · Websites · Digital presence — crafted in Sweden, built for Europe.

Start a project → See services
iOS · Androidnative & cross-platform
EU · GDPRcompliant by default
1:1direct with the developer
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Services

What we build for you

From the first idea to the App Store and the live domain — precise, solid, made to measure.

App Development

Native apps for iOS, Android and watchOS — from concept to App Store. Built with Swift, Kotlin and cross-platform technologies.

Web Development

Professional websites and landing pages. Modern, fast, mobile-optimised — no CMS ballast, pure HTML/CSS/JS.

Backend Development

Server architecture, REST APIs, database design and automation. From a simple website to a production app backend handling thousands of requests a day.

AI Integration

We integrate AI into existing products and workflows — from automated reports and smart assistants to intelligent data analysis.

AI Voice Assistant

An assistant that handles your phone calls — coordinating appointments, gathering quotes, answering enquiries. Multilingual, with its own phone number. As a service or built in-house.

Digital Presence

LinkedIn, Xing, Google Business — a professional presence in the digital space. Setup, optimisation and consistent branding across all channels.

Tech stack

What we use

MobileSwift · Kotlin · SwiftUI · watchOS
WebHTML · CSS · JavaScript
BackendLinux · Python · SQLite · REST API · systemd
AIClaude API · OpenAI · Telegram Bots
ToolsXcode · Android Studio · VS Code · Git · Netcup · Tailscale
Why ByggCode

Craftsmanship, not a corporate machine

Direct & personal

No project manager in between. You talk directly to the developer who writes the code.

Solid quality

Handcrafted precision instead of copy-paste solutions. Every detail is built to last.

European standard

GDPR-compliant, EU-based, reliable. Your data and your project stay on European ground.

Flexible & fast

Small projects start in days, not weeks. Short paths, quick decisions, real momentum.

BCSWE 🇸🇪
About

The studio behind ByggCode

ByggCode Studio is a software studio based in Sweden. We build apps, websites and digital solutions for small and medium-sized businesses — mainly in Germany and Sweden.

It all started over 20 years ago — with a first website, written by hand, line by line. Today we work full-stack: from the native iOS/Android app to the Linux backend server. Our best-known project is PrimeMap — an explorer app with over 4 million historical places worldwide.

A small studio with a direct line — for you that means short paths, fast decisions and no layers in between.

SwiftSwiftUIKotlinwatchOSTypeScriptNode.jsHTML/CSS/JSPostgreSQL
Selected work

Built & shipped

A few projects that are live in the App Store, Google Play and on the web.

primemap.de
PrimeMap website
App Development · Backend Development

PrimeMap

Explorer app with over 4 million historical places worldwide — castles, ruins, lost places, museums and geocaches. Native apps for iOS, Android and watchOS with AR mode and Apple Watch support. Powered by its own production backend server with a REST API and automated AI reporting. 13 languages, available on the App Store and Google Play.

primemap.de
sermatec-systems.de
SERMATEC Systems website
Web Development

SERMATEC Systems

Professional company website for a German engineering office from Schwerin. Built in HTML/CSS/JS — fast, low-maintenance and without CMS overhead.

sermatec-systems.de
floating-images.de
Floating Images website
Web Development

Floating Images

Website for a professional aerial photographer — a modern portfolio design that puts the work centre stage.

floating-images.de
Trommelfeuer 1914–18
Trommelfeuer 1914-18 gameplay
Game Development · Backend Development

Trommelfeuer 1914–18

Turn-based First World War strategy game for two players — each takes their turn whenever they have time. Its own server handles ranking, public matchmaking and push notifications, while the game logic runs entirely on the devices.

On the App Store
Leo — KI-Assistent
Leo KI-Assistent app
App Development · AI · Backend Development

Leo

Personal AI assistant for calendar, tasks, notes and mailbox — operated by conversation, with a voice of its own. Mistral language model, its own server in Europe, no data trading.

On the App Store
Contact

Let's build something

Got an idea, a project or just a question? Drop a line — I usually reply within a day.

jan@mirass.de
Hästveda, Sweden · serving DE & SE
Reply within 24 hours Send message →