Cortex — your personal attention lab

Most apps guess. Cortex measures.

A 60-second morning reaction test turns your focus into a daily score against your own baseline. Then you run real experiments on your habits — one variable at a time — and Cortex tells you honestly whether anything changed. If the data is noise, it says so.

How it works

• Test each morning. One minute, in your own morning window.
• See your score. Compared to your personal baseline — never someone else's average.
• Run experiments. Caffeine cutoff, phone-free first hour, earlier bedtime and more. Baseline days vs intervention days, with an honest verdict.

Cortex is made for iPhone.