YY Lee Tools

Productivity & Financial Analysis

A collection of minimalist tools for time management and investment calculations

Productivity

Time management and planning tools to optimize your workflow and achieve your goals.

Timer

Dynamic time slot scheduling with integrated timer and note-taking

Planner

Plan your week with goal tracking and task management

Calendar

Weekly view calendar for 2025 planning and overview

Investment

Financial analysis tools for investment decisions and portfolio optimization.

Growth

Calculate compound annual growth rates and projections

IRR

Internal rate of return calculations for investment evaluation

Returns

Comprehensive investment return and performance analysis

Loans

Loan payment calculations and amortization schedules