Compound Brain

Your second brain

Everything you're building,
compounding in one calm place.

Goals, money, habits, journal and calendar — woven together with an AI copilot that actually knows your life. Less scattered. More you.

No card required · cancel anytime

Goals

Set Mind, Body & Money goals and watch streaks, milestones and progress compound.

Finances

Accounts, a clean ledger and net-worth rollups — your whole money picture in one place.

Journal

A calm daily space to reflect, tagged to the parts of life you're building.

Calendar

Plan your week with a Notion-style grid that links your Google & Outlook calendars.

To-dos

Capture tasks against your goals, synced with Microsoft To Do or Google Tasks.

Rules of life

Write the principles you live by — your personal operating system, always in view.

An AI copilot that has read your goals, rules and numbers.

Ask it anything — plan your week, pressure-test a goal, or find where your time and money are really going. It answers with your context, not generic advice.

Try it free for 7 days