iOS · macOSAudio Cleaner and Enhancer
Reduce background noise and make speech easier to hear in voice memos, lectures and interviews. Clean recordings on your iPhone, iPad or Mac.
Independent studio · Luxembourg
Thoughtful apps.
Built to last.
We’re Kovallux, a boutique iOS and macOS app development studio in Luxembourg. We build useful products and help businesses modernise their software, with security considered from the start.
Small by choice. Focused on the details.
Our work, in your hands
Useful by design.
iOS · macOS
macOSFast Rates: Currency converter
Keep exchange rates in your Mac menu bar and convert currencies in one click. Saved rates work offline; Premium adds alerts, charts and CSV export.
iOSSend Alarm – Wake a Friend
Send an alarm request to a friend. They choose whether to accept it, then their iPhone schedules the alarm. Follow its status as the time approaches.
For businesses
Apple-native.
Security-minded.
Built around you.
From real-time video to banking and desktop software, we help businesses make better use of Apple platforms. Clear architecture, practical use of AI coding agents and responsibility from first review to release.
Meet your development studioiOS & macOS development
Purpose-built apps and internal tools that fit the way your team works.
On-device AI
Document recognition, image analysis and workflow automation on Apple platforms.
Security from the start
Secure data handling and a considered approach to your existing systems.
Selected engineering experience
Complex products. Concrete work.
Projects delivered by our founder across client and consulting engagements.
DRESSX
Native macOS · Real-time video
Digital fashion, live on camera.
A desktop camera application bringing real-time digital fashion into video calls.
View project : DRESSX- macOS
- Video capture
- Virtual camera
Dolby Laboratories
macOS · Computer vision
From imaging research to working software.
Advanced photo and video research prototypes using CoreML and Metal.
View project : Dolby Laboratories- CoreML
- Metal
- Computer vision
Print Artist & Hallmark Card Studio
macOS & Windows · Modernisation
Established desktop software, rebuilt.
Modernisation of creative design and publishing applications with extensive existing content libraries.
View project : Print Artist & Hallmark Card Studio- macOS
- C# / .NET
- Document editing
Agent-based SDLC
AI-assisted. Engineer-led.
AI coding agents support the work. Our engineer owns the architecture, review and delivery.
People who worked with our founder
Experience, in their words.
“I had the pleasure of working with Sergii at DRESSX, where he played a pivotal role in developing our camera app.”
“The testing resulted in a large number of security findings which he successfully fixed.”
“Based upon high level product requirements, Sergey is able to translate objectives into fully functional and tested deliverables within expected (agile methodology) timeframes.”
Our founder’s book
Secure Development of iOS and macOS Applications
A step-by-step Programming Guide with Code Samples
A practical guide to finding security weaknesses in iOS and macOS apps, understanding what an app bundle can expose, and protecting app and user data. Written for developers, with concrete advice and code samples to apply in their own projects.
English · Kindle edition · Published 2024
View on Amazon (opens in a new tab)The journal
From the workbench.
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