websystems
Keep it simple.
Specialist for Booking Systems + E-Commerce
We build software that gets out of the way. That doesn't show off. That simply does its job. So you can do yours.
Our clients are organizations, shops, and businesses across Europe.
Solutions
Conceived, developed and operated - all in-house.
Verleihtool
Software for bike and e-bike rentals. Manage bookings, real-time availability, digital contracts.
- Hotels, rental shops, businesses
- Multi-location support
- No paperwork
Shop-Software
Shop software for businesses that want to sell. Lean and fast without technical overhead.
- One-time license, no monthly subscription
- Stripe & PayPal
- Full data ownership - no vendor lock-in
Machinery Ring Software
Software for the annual billing of machinery rings, cooperatives and similar associations.
Learn moreClub Management
Member data, dues, courses and the club website in one lean platform. Usable without IT skills.
- All data and documents managed centrally
- Dedicated instance on EU servers, sensitive documents encrypted
- Online membership fee payment with automatic receipt
- No paperwork
Booking & Order Systems
No matching product? I build booking and order systems tailored to your business.
Booking system for an educational institution
800 concurrent users on registration day. All spots gone within minutes.
Association platform with 400+ members
Course booking, membership payments, digital document management.
E-commerce platform as shop replacement
Complete data migration from existing system.
Chrome Extensions
Small tools for the browser. Free, no account, no data collection.
David Gstrein
SEO Consultant and Software Developer
