249+ iOS apps curated and reviewed
The best interest calculator apps on iPhone average 4.6★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (105K) | Yes | No | Aug 2026 |
| 2 |  | Free | 4.6★ (77) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (6.5K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.6★ (22K) | Yes | Yes | Aug 2026 |
| 5 |  | Free | — | No | No | Aug 2026 |
| 6 |  | Free | 4.4★ (51) | Yes | No | Aug 2026 |
| 7 |  | Free | 5.0★ (2) | No | No | Jul 2026 |
| 8 |  | Free | 4.8★ (3.4K) | No | No | Aug 2026 |
Easily calculate loan or mortgage payments. Simply input the loan amount, repayment term, and interest rate to get your estimated monthly payment.
Easily calculate compound and simple interest on various investments like FDs, CDs, and RDs. Project future investment values and analyze returns with a user-friendly interface for global users.
Plan your financial future with a powerful compound interest calculator. It helps you visualize investment growth with periodic contributions and plan retirement withdrawals with inflation adjustments. Offers detailed breakdowns and interactive charts for informed financial decisions.
This app helps you understand the true cost of loans and mortgages by revealing total interest paid and payoff timelines. It allows for scenario comparisons, extra payment analysis, and detailed amortization schedules. Visualize your debt journey with graphs and access bonus calculators.
Calculate interest on loans and investments with ease. This utility app allows for date range or duration-based calculations, saving and sharing of results, and an 'Interest Book' to manage all lending and borrowing details. Sync your data to email for safekeeping.
Access a comprehensive suite of financial tools for personal and business use. Calculate loans, mortgages, investments, retirement savings, and more with ease. This app offers a wide range of specialized calculators for detailed financial analysis.
This app simplifies financial planning by providing quick and accurate calculations for both simple and compound interest. It offers an intuitive interface, customizable parameters, and dual display modes for numerical and graphical results. Track your financial progress and learn the fundamentals of interest calculation.
Calculate the growth of savings and investments using compound interest. Explore how regular contributions and withdrawals impact your financial goals over time. Designed for anyone to understand and utilize the power of compounding for wealth building.
Calculate compound interest and ROI with customizable settings for periods and tax rates. Visualize your investment growth with detailed charts and breakdowns. Generate PDF reports and access a web version for comprehensive financial planning.
This app offers a comprehensive suite of over 40 financial and utility calculators. Easily handle complex calculations like investment analysis, tax percentages, profit margins, and everyday percentage needs with a clean and intuitive interface.
This tool quickly and accurately calculates simple interest based on amount, interest rate, and duration. It supports calculations for monthly or yearly rates and can determine interest between specific dates or for a given period in years, months, or days.
This app helps users calculate interest on savings and deposits. It offers options for isolated and compounded monthly calculations, allowing users to determine maturity amounts for lump sum or monthly deposits to reach financial targets.
This personal finance assistant simplifies loan management and investment planning. Calculate EMIs, plan SIPs, and compare loan options to make informed financial decisions.
Manage loans and interest rates with this comprehensive financial calculator. It offers flexible rate management, detailed payment schedules, and visual insights to help you plan and compare loan options effectively. Also includes a savings calculator for integrated financial planning.
