Arcois

Tools for the thinking human.

Arcois builds software that helps people think more clearly, work more effectively, and become better at being human.

Live

MyExternalCortex

Meeting you where you are

A life-management assistant for ADHD and beyond. Natural-language tasks, reminders, and adaptive coaching — on Discord, Telegram, Slack, and more.

myexternalcortex.com →
In development

More in development

New tools in the tools-for-thought tradition. Adaptive, human-centered, built to augment — not replace — the people who use them.

The most valuable thing software can do is make its users more capable — not more dependent. Every tool we build is measured against that.

— Petro, founder

Questions, partnership inquiries, or just want to talk tools-for-thought: petro@arcois.net