Navigator · Decision ToolsIndex · 6 units

Navigator · Interactive Tools

The Tools

Free, no-login instruments that turn the theory into practice — calculators and planners that run entirely in your browser. Nothing you enter ever leaves your device. Each tool pairs a working console with a plain-English guide to reading what it tells you.

01Finance

Compounding Calculator

Set a starting sum, a rate, a monthly deposit and a horizon. The engine runs the balance forward month by month and separates what you added from what growth added.

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02Decision making

Decision Matrix

List your options and the criteria that matter, weight each criterion, then score every option. The matrix multiplies through and ranks them.

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03Productivity

Eisenhower Prioritiser

Add each task and mark whether it's important and whether it's urgent. The tool sorts it into do, schedule, delegate, or delete.

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04Decision making

Expected Value Calculator

List the possible outcomes of a decision, each with a probability and a value. The tool computes the probability-weighted average — the expected value.

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05Productivity

Focus Timer

A minimal timer on the Pomodoro rhythm — 25 minutes of focused work, then a 5-minute break — to protect deep work from distraction.

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06Productivity

Impact–Effort Plotter

Add each idea with an impact and effort rating. The tool plots them on the matrix and flags the quick wins.

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