BangBang

YOUR EVERYDAY TOOLBOX

Finance15

Browse every tool included in BangBang. Each page explains the task, how to use it and how its workspace is designed.

View on the App Store

Coming to the App Store. Download will be available after release.

Finance

Fixed-payment Loan

Estimate payments, total interest, fees, and amortization for a fixed-rate installment loan, or solve for one loan variable.

Finance

Compound Growth

Estimate how an initial balance and recurring contributions grow at a given return and compounding frequency.

Finance

Salary Converter

Convert pre-tax pay among hourly, daily, weekly, monthly, and annual frequencies.

Finance

Rent Affordability

Compare income-ratio and cash-flow limits for a monthly rent scenario.

Finance

Auto Loan

Estimate vehicle financing, trade-in equity, manual tax and total purchase costs.

Finance

Refinance Comparison

Compare fixed-loan payments, costs, payoff balances and break-even months.

Finance

Average Return

Compare arithmetic, geometric, cumulative and annualized returns.

Finance

GDP Calculator

Sum expenditure or income components with a consistent data basis.

Finance

Debt Payoff

Compare fixed monthly debt plans with same-month payment rollover.

Finance

Inflation Purchasing Power

Compare U.S. purchasing power using a frozen official CPI-U snapshot.

Finance

College Cost Scenario

Estimate yearly tuition, living costs, funding and uncovered costs.

Finance

Annuity Values

Solve fixed annuity values with explicit payment timing and cash-flow signs.

Finance

House Affordability

Explore housing budgets with debt, down payment, tax and loan assumptions.

Finance

Retirement Projection

Compare savings, retirement spending and gaps under explicit assumptions.

Finance

U.S. Social Security Estimate

Compare claiming ages using annual earnings and a dated SSA rule snapshot.