Mobile apps
For Android, iOS or both. For frequent use, a dedicated mobile experience or access to specific device features.
Mobile apps for Android and iOS, or a PWA that works directly in the browser. For your customers, your team or your own product. One direct contact from idea to delivery.



We start with your users and the tasks they need to complete. Then we choose the approach that fits the features, devices and budget.
For Android, iOS or both. For frequent use, a dedicated mobile experience or access to specific device features.
An app shared through a link, without a mandatory app store installation. Useful for records, appointments and internal workflows. Installation and capabilities vary by browser and device.
Explore mobile apps and PWAs. Each project identifies its platform and distribution.

A training log with workout recording, routines and progress. Available for Android; try the iPhone version through TestFlight.
Explore the project ↗
Branded time tracking for a riding school, with on-device records and monthly reports. A PWA that works directly in the browser.
Explore the project ↗
Record working days and breaks, review your month and create a PDF report. An Android app with local data storage.
Explore the project ↗
Investment research, watchlists and analyses in an installable web app. A PWA example for phone, tablet and laptop.
Explore the project ↗We discuss the idea, users and the task the app should simplify.
Choose Android, iOS or PWA and agree features, cost, timing and responsibilities.
Review the structure and key screens before development proceeds.
I am Björn Billooye, the independent designer and developer behind Kwant Software in Ninove. I build mobile apps and PWAs for small businesses and my own products. You work directly with me from the first conversation to delivery.
About me ↗It depends on users, devices, features and distribution. A PWA opens through a link; a mobile app is built for Android or iOS. We investigate limitations before choosing.
A PWA can run in a suitable browser on both. Installation, notifications, offline behaviour and device access must be checked for each browser and version.
The quote depends on features, platforms, integrations and support. You receive a scoped proposal after discovery.
Not always. A PWA can be shared through a link. For mobile apps we agree suitable distribution and any store publication. Stores decide on approval.
What would you like to simplify, and for whom? You do not need to choose between Android, iOS and PWA before getting in touch.