
Quidamo
A watch-face style circular interface, designed from concept to launch
At a glance
Over one year I designed Quidamo for IRDC Inc. from concept to finished product, including a circular interface that spins like a watch face to reveal more icons.
The challenge
The app had more actions than a small screen could show without clutter.
What I led
- Designed a circular interface that uses the space hidden off-screen, spinning like a watch face to reveal more icons
- Designed every page, icon, interface photo, wireframe and logo
- Built the HTML and CSS
- Ran A/B testing to refine the experience
The outcome
A distinctive, uncluttered interface delivered as a finished product, with every visual and interaction designed from scratch.
Overview
Quidamo was a one-year design, from concept to finished product, including the UI and UX, for the client IRDC Inc.
The interface was designed to use the space not shown on the screen to add more icon locations. It spun around the entire hidden area of the circle, as if it were a watch face.
Services
Wireframe, Prototype, Interaction Design, Visual Design, HTML/CSS, A/B Testing
Client name
IRDC Inc.
Team
UI/UX Designer (John Karl)
The Watch-Face Interface
Idea:
Treat the screen as a window onto a larger circle.
Icons sit around a circle that extends beyond the screen
Spin the circle to bring more icons into view
Every icon, page and logo designed to fit the concept


Quidamo circular interface on iPhone.
Final observations
Using the hidden part of the circle gave the app more room without adding clutter. Owning the whole design, from logos to HTML and CSS, kept the concept consistent from end to end.

John Karl
19 Years • Product & UX Design Leader Leading Mobile Product for 500K+ Users
If you like what you see or have any questions, feel free to send me an email anytime.
Selected work
[2010 -2025]



























