Jostech

Mortgage & Loan Calculator US

High‑impact finance tools for U.S. households – calculate mortgages, loans, investments, retirement, debt payoffs, refinancing and more offline.

Get it on Google Play

Mortgage Calculator

Calculate monthly mortgage payments, amortization schedules and total interest.

Loan Calculator

Estimate loan repayments, compare different scenarios and analyze interest rates.

Investment Calculator

Project future values and compare returns for your savings and investment plans.

Interest Calculator

Compute simple and compound interest over time to understand growth.

Retirement Calculator

Plan your retirement contributions and estimate savings growth into the future.

Salary Calculator

Estimate your take‑home pay by accounting for federal taxes and deductions.

Credit Card Payoff

Determine payoff timelines and see how extra payments accelerate debt elimination.

Refinance Calculator

Compare your current loans to new terms to find potential savings.

HELOC Calculator

Analyze Home Equity Line of Credit payments and draw periods for flexible borrowing.

House Affordability

Find out how much home you can afford based on your income, down payment and expenses.

Focused & Comprehensive

Concentrates on the finance calculators that matter most: mortgage, loan, investment, retirement, debt payoff, refinance, HELOC, house affordability and salary.

Offline & Private

All calculations happen on your device – no internet required and no personal data leaves your phone.

Accurate & Flexible

Adjust compounding periods, payment frequencies, extra contributions and inflation to see the full picture.

US Specific

Follows U.S. standards for interest rates, loan amortization and federal payroll taxes.

Clean Design & Dark Mode

Modern Flutter UI with a responsive layout and built‑in dark mode for comfortable viewing.

Free with Optional Premium

Enjoy all tools at no cost with an optional upgrade to remove ads.