What your mind predicts, and what your days are actually like.

Why a log

A ship's log records what actually happened, hour by hour, so the navigator can check it against where they thought they were. Your mind keeps a different kind of log. It remembers one bad hour as the whole day, and expects the meeting you dread to be worse than it turns out. Logbook keeps the first kind of log, so you can check the second.

Four practices

Moments

A few times a day your watch taps your wrist. You tap once: good, bad, or neither. Later you can add what you were doing and, for a bad moment, whether it was the thing itself or your mind about it. Over a few weeks, it shows what your days are actually made of.

Forecasts

You write down what you dread and what you hope for, how you expect to feel afterwards, and when you'll know. When that day comes, you record what happened.

Whens

“I'll be fine when…” You write down the condition and how you expect to feel once it's met. Once it's met, Logbook asks again after a week, three months and a year.

Bookends

Three questions each morning and a few each evening. Each morning's expectations are paired with that evening's answers automatically.

You can start or stop any of them and run several at once. Stopping never deletes anything.

What it shows you

• How often the things you dreaded actually happened.
• How far off your predictions were, with dreads and hopes measured separately.
• What your moments were like during the things you dreaded.
• How you felt after each goal you reached, and what you set next.

The charts are plain lines and bars. Until there's enough data, it tells you how much more it needs.

What it doesn't do

No advice. No streaks, badges or scores. No encouragement messages. No AI inside the app. One button exports a readable summary of any date range, so you can review it however you like.

The second instrument

POLAR does this for tournament poker: it separates what you did from what the deck did. Logbook does it for everyday life: it separates what happened from what your mind said would happen.

Read the Becoming essays →