Welcome

Independent since 1982

Independent developer since 1982, I started with a ZX81 given to me by my father.

Today, I design applications for the web, macOS, and mobile, with a simple approach: creating tools that are useful, reliable, and thoughtfully designed for their users.

My projects are constantly evolving. Your feedback, ideas, and needs are always welcome, whether it is to improve an existing tool or help bring a new project to life.

Sinclair ZX81 computer — Image: Evan-Amos, CC BY-SA 3.0

Contact Explore projects

News

May 29, 2026

Available now

MoneyDesk will replace iBank in the next few days. The app will be available on the App Store. Stay in control of your finances.

April 22, 2026

Available now

PDFMarginNotes is now available for download on the App Store. Turn your PDF annotations into clean, readable, printable pages.

April 15, 2026

New contact form

The GorillaDev website has been updated with a new contact form.

Projects

TimeToDo

A time and task management app with timers for iOS and Android. V1 is being finalized.

MoneyDesk

A modern bank account management app for Mac, continuing from iBank.

Jardinez avec la lune

A tool to garden with the moon and know what to do in your garden each day.

PDFMarginNotes

Make your PDF annotations easier to read with a clean, print-ready layout.

Anniversaires.Net

Discover the personalities born or who died each day.