Personal Money

Round-Up Savings Projection

Estimate spare-change round-ups for named purchases to the next whole currency unit.

Savings Challenge Builder

Create a bounded, browser-local savings challenge builder with visible assumptions, review guidance, and downloadable output.

Savings Deposit Streak Tracker

Find the longest consecutive calendar-day sequence in a manual savings deposit log.

Savings Rate Change Simulator

Compare two savings percentages on the same monthly income and annualize the difference.

School Expense Annualizer

Annualize one-off, term, and monthly school costs with explicit frequency assumptions.

Sinking Fund Contribution Gap Audit

Compare a current monthly sinking-fund deposit with the even deposit required for a chosen target.

Snowball Versus Avalanche Comparator

Run the same debts through snowball and avalanche schedules with payment rollover, payoff dates, and interest differences.

Spending Trend by Category Analyzer

Compare monthly category spending, trailing averages, refunds, and robust unusual-change evidence.

Student Budget Planner

Create a bounded, browser-local student budget planner with visible assumptions, review guidance, and downloadable output.

Subscription Billing Interval Audit

Review approximate next billing dates and overdue estimates from last bills and cadences.

Subscription Cancellation Letter

Create a bounded, browser-local subscription cancellation letter with visible assumptions, review guidance, and downloadable output.

Subscription Tracker

Create a bounded, browser-local subscription tracker with visible assumptions, review guidance, and downloadable output.