Appic SandBox
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// projects

Built in the sandbox.

A product we run, a platform we co-founded, an open payment protocol, a practice that runs on silence — and the experiments that came before.

  1. 01 web app 2026

    Check-in Man

    Every one-on-one deserves a room of its own.

    concept, design & development

    The Check-in Man homepage: “Every one-on-one deserves a room of its own”, next to a rack of brass room keys.

  2. 02 practice & philosophy 2026

    christiaankloes.nl

    The coolest head in the room.

    concept, brand & website

    The christiaankloes.nl homepage: “Het koelste hoofd in de kamer.” — meditation for entrepreneurs.

  3. 03 marketplace 2023

    Standplaats.nl

    Where food trucks, market stalls and empty pitches find each other.

    co-founder — built the platform

    Standplaats.nl: available pitches with filters for type, place, date and branch.

  4. 04 open-source payments 2021–2024

    AgnostiPay

    Pay straight from the account you already have.

    co-founder — technology

    The AgnostiPay foundation website: “Open & Direct Payment Technology — Harness the Power of Direct Transactions.”

  5. 05 social payments 2019–2020

    Spendies

    Ask in euros. Receive in crypto.

    co-founder — product & technology

    Three Spendies screens: the splash screen, choosing the currency you want to receive, and the QR code of a payment request.

  6. 06 hackathon prototype 2020

    Odyssey

    Every handover, signed.

    concept, design & prototype

    Three screens of the Odyssey app: scanning a package QR code, the shipment with its signed steps, and a confirmed handover.

  7. 07 freelance back office 2019–2020

    Boared

    Hours in. Money sorted.

    concept, design & development

    The Boared dashboard, redrawn from the 2020 wireframes: a running timer, hours against goals for today, the week, the month and the year, the money set aside this month and the budget that is left.

// client work

Built for others.

Websites, webshops and portals for clients — directly, or together with design and web agencies.