We build your software and keep it running.

Websites, AI workflows and custom software for small businesses and founders. One partner in Winterthur, from the first call to every update after launch.

Book a free call Write an email

Call
20 minutes by video
Then
A plan and a budget you approve

What we build and run

Five services, one point of contact. Start with the problem you have, and we will tell you which of these it needs.

  • AI workflows

    Hand the repetitive work to software and keep people where judgement matters.

    We look at how work moves through your inbox, documents and tools, then automate the routine steps with current AI models. A person approves what matters before anything goes out.

    Example: an AI workflow for incoming email
    1. An email arrives
    2. The model reads and sorts it
    3. It drafts a reply
    4. A person checks it and sends it
    Ask about AI workflows
    • Sorting incoming email and drafting replies
    • Reading invoices and forms into accounting or your CRM
    • An assistant that answers from your own documents

  • AI coaching

    Use AI tools well on your own work, not on demo examples.

    Hands-on sessions for teams and founders: which tools fit your work, how to use them safely with company data, and how they become part of the daily routine. For development teams, coaching on AI-assisted programming.

    Two people at a small café table with laptops and coffee cups, looking at the same screen
    From a client meeting: explaining AI workflows
    Ask about AI coaching
    • A workshop with your team on its real tasks
    • One-to-one sessions for founders and managers
    • AI coding assistants for development teams

  • Websites

    A clear, fast website that says what you do, in the languages of your customers.

    Structure, text, design and build, then hosting and updates if you want them.

    Ask about a website
    • Company websites and landing pages
    • Sites in German, French, Italian and English
    • Menus, opening hours and booking links

  • Custom software

    When no product off the shelf fits, we build the one that does.

    Web applications, portals and integrations between the systems you already use, from architecture to deployment.

    Ask about custom software
    • Internal tools that replace spreadsheets
    • Portals for customers and partners
    • Connections between systems that do not talk to each other

  • Hosting and support

    Someone who keeps it running and answers when something breaks.

    Hosting, domains, email, security updates, backups and monitoring, for what we build and for sites we take over.

    Ask about hosting and support
    • Hosting and domain administration
    • Updates, backups and monitoring
    • Fixes when something stops working

How a project runs

A short call, a plan with a budget, then work you can see.

  1. You book a call

    20 minutes by video, free. Tell us what you need and by when. If you prefer to write, an email works too.

  2. We send a plan

    Questions, a proposed approach and a budget at CHF 160 per hour. Work starts once you approve it.

  3. We build in small steps

    You see working results early and decide what comes next.

  4. We keep it running

    Hosting, updates and support, or a clean handover with documentation. Your choice.

What you can count on

The same rules for every project, from a small website to a full platform.

  • You keep the keys

    Code, domain and accounts belong to you. Whenever you ask, we hand everything over with documentation.

  • Tests and updates are included

    Automated tests and security updates are part of every build, not extras on the invoice.

  • A person checks all AI work

    We use AI where it helps, and a person reviews everything before it reaches you or your customers.

Start with a free call

Twenty minutes by video. Tell us what you need, and we tell you honestly whether and how we can help. We only take on a few projects at a time.

Book a call Free · 20 minutes · on Cal.com

pleXius GmbH is a software agency in Winterthur, Switzerland. The people who build your software also run it, so nothing gets lost between an agency, a developer and a hosting company.