Compound Interest & Time Value
Interactive growth calculator with chart, simple-vs-compound, Rule of 72, FV/PV.
Open Compound Interest & Time Value7 modules · Financial Literacy
Financial Literacy
The math of money — earning, saving, borrowing and growing it. Explore 7 free interactive financial literacy modules — no signup, works offline.
7
Modules
Free
No signup
Offline
Works anywhere
Financial Literacy modules
Each one is a self-contained interactive app — open it and start straight away.
Budgeting Fundamentals
50/30/20, zero-based and envelope methods compared, with a hands-on planner and donut chart.
Open Budgeting FundamentalsCredit Scores
The five FICO factors, score gauge simulator, and what actually moves your score.
Open Credit ScoresTaxes 101
2024 brackets, W-2 vs 1099, deductions, and a federal-tax estimator with bracket visualization.
Open Taxes 101Loans & Interest Rates
APR, principal and amortization schedule with extra-principal payoff simulator.
Open Loans & Interest RatesInvesting Basics
Stocks, bonds and index funds — with an allocation simulator showing return and worst-year loss.
Open Investing BasicsRetirement Account Types
401(k), IRA, Roth, HSA compared, with a Roth-vs-traditional simulator and funding-priority guide.
Open Retirement Account TypesOther subjects
Noduly covers 16 subjects in total.