222+ iOS apps curated and reviewed
The best simple interest calculator apps on iPhone average 4.5★ across 222+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Calculate your loans or mortgages effortlessly with this simple loan calculator app. Just input the amount, term, and rate to get quick results. Try it now!
This application allows users to quickly and accurately calculate simple interest on any amount at any interest rate, whether monthly or yearly. Users can calculate interest over a specific period, between two dates, or for a custom duration in years, months, or days.
Discover the ultimate Loan and Mortgage Calculator - a versatile tool for home buyers, real estate professionals, and more. Easily analyze loans, explore early payoff options, and view detailed payment breakdowns. A must-have for informed financial decisions!
Effortlessly calculate percentages with our user-friendly app. Whether you need to figure out discounts, tips, or percentage increases, our tool makes it simple. Try it now for quick and accurate percentage calculations!
This finance tool helps users calculate and understand various types of interest on investments and savings, offering a range of features to manage fixed deposits, certificates of deposit, and other investments. With its user-friendly interface, it enables users to make informed financial decisions and take control of their financial future.
"Compounder is an interest calculator app that helps you quickly calculate compound interest, where interest is earned on the initial principal plus accumulated interest from previous periods. Start saving and see how your money grows over time with compound interest. Try it now!"
This application helps users calculate savings and deposits by providing tools to determine maturity amounts, target savings, and interest earned. It allows users to calculate monthly savings, lump sum payments, and compound interest, making it a useful deposit and savings interest calculator.
Our EMI Calculator is an all-in-one tool that simplifies loan planning, allowing you to instantly compute Equated Monthly Installments (EMI), compare loan options, and manage your finances with ease.
This application helps users plan, invest, and retire by calculating the future value of their investments using a predictive formula based on compound interest. Start investing today to potentially become a millionaire in the future!
This loan calculator helps you determine your monthly payments and repayment schedule based on the loan amount, term, and interest rate. You can choose from different repayment methods, including equal principal and interest payments, equal principal payments, and principal maturity, to calculate your repayments, principal, interest, and balance.
This application allows users to easily calculate interest with just one click, offering features such as simple interest, compound interest, and date-to-date calculations. Try it out to plan and calculate your interests efficiently!
This tool helps you calculate and plan your investments to achieve financial independence and retire early by harnessing the power of compound interest. With various features and contribution frequency options, you can start planning your long-term and short-term savings today and see how your money can grow over time.
A simple and intuitive calculator app with essential functions like addition, subtraction, multiplication, and more. Customize with multiple color schemes, copy results easily, and use additional functions on iPad. Experience the perfect balance of features and simplicity today!
Estimate your monthly mortgage payment with this calculator, inputting home price, down payment, loan term, and interest rate to see how your payment changes, with breakdowns of principal, interest, taxes, and insurance. Use this tool to analyze payments, generate amortization schedules, compare loans, and visualize interest and principal percentages.
Estimate monthly loan payments and view an amortization chart with this easy-to-use app. Input loan amount, time, and interest rate to calculate monthly payment, total interest, and total payment. Access annual or monthly amortization schedules and charts.
