Decision Journal
Offline · Encrypted · macOS

A private journal
for the decisions you make
and the ones you want to get better at.

Capture a decision as you make it. Come back months later and log how it actually played out. Slowly build a real picture of your own judgment — on your Mac, never in the cloud.

Universal macOS binary · Intel + Apple Silicon · macOS 11+

Most people never review their decisions.

We make hundreds of choices a day and forget them by dinner. The big ones fade into vague memory — was that a good call? Did I learn anything?

A decision journal fixes that. Write down what you decided, why, and what you expect. Months later, review it. The gap between your intuition and reality is where growth lives.

Built to stay private.

This isn't a web app with a login. It's a native Mac app that stores everything locally, encrypts it, and blocks its own network access. Anything that goes online is something you switched on and chose to send. Your data is yours. Full stop.

No subscription, no sync, no surveillance. Just a quiet place to think clearly and honestly about how you make choices.

What you get

01

Your journal stays on your Mac

No accounts. No cloud. A kill-switch in the main process blocks every outbound request by default — nothing is uploaded in the background, not even analytics. The one exception is opt-in: if you turn on online AI with your own API key, the decisions you attach to that chat are sent. Off unless you ask for it.

Zero network by default
02

Encrypted at rest

A 256-bit key encrypts your database. Your PIN wraps that key via Argon2id, and the macOS keychain wraps it again. Copy the file off your disk and it looks like random noise.

Argon2id + Keychain
03

Local AI, on your machine

Chat with a local Ollama model about past decisions. Dictate new ones with on-device Whisper. No prompts, no audio, no text off your Mac. Want a frontier model instead? Bring your own OpenRouter key — you pick the model and which decisions it sees.

Ollama + Whisper · optional OpenRouter
04

Review reminders that actually work

Set a review date when you log a decision. The app reminds you when it's time to reflect. Track your mental state, confidence, and outcomes over time. Spot your patterns.

Scheduled reviews

"A decision journal helps you collect accurate and honest feedback on your decisions."

— Farnam Street, on the practice of decision journaling

How it works

1

Log a decision

What are you deciding? What's the context? What do you expect to happen? Capture it in the moment while it's fresh.

2

Set a review date

Pick a future date to revisit this decision. A month, a quarter, a year. The app will remind you.

3

Review and learn

When the time comes, log what actually happened. Compare your prediction to reality. Build a record of your judgment.