Signal Deck

01

Choose a deck

02

Choose how the target is drawn

Session length

03

Check in

Mood

Sleep last night

Meditated first

Note

Your record

Insights

Deck

Every session

Journal

Profile and data

Settings

You

Name

Birth date (for your Sun sign)

Move to the next card automatically after each reveal

How scoring works

Every card is drawn with your browser's cryptographic random generator, not a predictable shuffle. In sealed mode the target is hashed (SHA-256) before you choose, so you can check it was fixed in advance.

Scores are shown as points above chance. Guessing 1 of 5 by luck hits 20% of the time, so 28% is +8 points. The z-score and p-value tell you how surprising a run is if nothing but luck is involved. Passes are never scored.

Back up and move your data

Everything stays in this browser on this device. Back it up regularly, or move it to another device by restoring the backup there.

Restore

Paste a backup or choose a backup file. Restoring replaces the data in this browser.