Best Interest Rate Comparison Tool Apps

199+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Every iPhone needs a few good interest rate comparison tool apps. We benchmark 199+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Interest Rate Comparison Tool

Compound Interest Calc#1

Compound Interest Calc by Dane Hankamer

Plan | Invest | Retire
Editor's Choice
πŸ’° Finance
4.5😊(220 ratings)
FreeAdsIn-App Purchases
Compound Interest Calc screenshot 1
Compound Interest Calc screenshot 2
Compound Interest Calc screenshot 3
Compound Interest Calc screenshot 4
Compound Interest Calc screenshot 5
Compound Interest Calc screenshot 6

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!

What We Love

  • πŸš€ Easy to use
  • πŸš€ Visually appealing
  • πŸš€ Helpful for financial planning
  • πŸš€ Powerful compound interest calculations

Room to Improve

  • πŸ› Scaling issues on smaller devices
  • πŸ› Inaccurate calculations in certain scenarios
  • πŸ› Frequent ads disrupting user experience
Loan Calculator - Debt Planner#2

Loan Calculator - Debt Planner by Michael Chu

Mortgage, Car, School, Payday
Strong Contender
πŸ’° Finance
4.6😐(22K ratings)
FreeAdsIn-App Purchases
Loan Calculator - Debt Planner screenshot 1
Loan Calculator - Debt Planner screenshot 2
Loan Calculator - Debt Planner screenshot 3
Loan Calculator - Debt Planner screenshot 4
Loan Calculator - Debt Planner screenshot 5
Loan Calculator - Debt Planner screenshot 6

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!

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Quick calculations
  • πŸ’‘ Helpful for financial decisions
  • πŸ”’ Secure app

Room to Improve

  • πŸ” Lacking advanced features
  • πŸ’Έ Excessive ads
  • πŸ› Bugs and crashes
Interest Calculator: Finance#3

Interest Calculator: Finance by Jatin Maniya

Compound & Savings Calc
Worth Considering
πŸ’° Finance
4.7(71 ratings)
FreeIn-App Purchases
Interest Calculator: Finance screenshot 1
Interest Calculator: Finance screenshot 2
Interest Calculator: Finance screenshot 3
Interest Calculator: Finance screenshot 4
Interest Calculator: Finance screenshot 5
Interest Calculator: Finance screenshot 6

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.

More Interest Rate Comparison Tool apps to explore

4
Interest Calculator & Planner
Interest Calculator & Planner
Interest Calculator & Planner
Simple interest calculator
Free

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!

πŸ’° Finance
(12)
5
Compound Interest Simulator
Compound Interest Simulator
Compound Interest Simulator
Savings calculator and planner
Free

Simulate your investments and visualize the growth of your savings through compound interest with our savings calculator and planner. Plan for financial independence, retirement, or major purchases easily using Basic Mode, or customize with Advanced Mode for additional features. Start achieving your financial goals now!

πŸ’° Finance
(325)
6
EZ Financial Calculators
EZ Financial Calculators
EZ Financial Calculators
by Bishinew Incorporated
Free

A comprehensive financial calculator app offering a wide range of calculators for finance, investment, loans, retirement, bonds, stocks, credit cards, auto loans, and more. Customize and prioritize calculators, share results via email, and enjoy offline functionality except for the Currency Converter. Contact pfinanceapp@gmail.com for questions or support.

πŸ’° Finance
(46)
7
Mortgage News Daily
Mortgage News Daily
Mortgage News Daily
Mortgage Calculators and Rates
Free

An all-in-one mortgage application providing calculators, real-time rates, market analysis, and news updates on mortgages and housing. Stay informed with instant alerts and make well-informed mortgage decisions.

πŸ“‘ News
(51)
8
Loan Calculator - Loan2Me
Loan Calculator - Loan2Me
Loan Calculator - Loan2Me
Quick and Easy Loan Calculator
Free

Calculate loan payments quickly and easily with a free loan calculator that offers additional features for precise calculations. Analyze mortgage or vehicle loans, save your data across devices, and access detailed reports for informed financial decisions. Upgrade to Pro for advanced functionalities and customization options.

πŸ’° Finance
(8.2K)
9
Simple Interest Calculator +
Simple Interest Calculator +
Simple Interest Calculator +
Calculate Simple Interest
Free

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.

πŸ’° Finance
(3)
10
Grant’s Interest Rate Observer
Grant’s Interest Rate Observer
Grant’s Interest Rate Observer
by Grant’s Financial Publishing, Inc.
Free

This financial journal, in its 35th year of publication, offers independent and value-oriented insights into the markets, identifying investment opportunities and providing analysis, ideas, and commentary. The accompanying app allows users to access and read issues, take notes, and share articles, as well as listen to podcasts, stay updated with newsletters, and search archives.

πŸ’Ό Business
(6)
11
Interest Calculator (deposits)
Interest Calculator (deposits)
Interest Calculator (deposits)
( deposits, savings )
Free

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.

πŸ’° Finance
(31)
12
Interest Rate Calculation
Interest Rate Calculation
Interest Rate Calculation
Helping you easy to calculate
Free

This application helps users easily calculate and convert various interest rates and interest types, including single and compound interest rates, annuities, and loan interest rates. Try it out to effortlessly determine interest rates and visualize data in a chart view.

πŸ”§ Utilities
(5)
13
Loan Amortization Calculator
Loan Amortization Calculator
Loan Amortization Calculator
Interest & Payment Schedule
Free

The Loan Amortization Calculator is a powerful app that helps you visualize and manage your loan payments. It allows you to easily input your loan details, calculate your monthly payments, and explore potential savings through additional payments, making it a valuable tool for financial planning and debt management.

πŸ’° Finance
(561)
14
Interest Calculator All in One
Interest Calculator All in One
Interest Calculator All in One
Calculate any type of interest
Free

This powerful loan calculator app helps you manage your finances by easily calculating different types of interest, creating payment schedules, and comparing loan options. Download now and take control of your financial planning with a user-friendly tool that provides visual insights and savings tracking.

πŸ’° Finance
(40)
15
Quick Interest Calculator
Quick Interest Calculator
Quick Interest Calculator
by Goran Rauker
Free

This quick compound interest calculator helps you determine your savings by inputting your starting balance, monthly savings, years to save, and interest rate. Use it to quickly calculate your savings and plan for the future.

πŸ’° Finance
(24)
16
Loan Calculator & Tax Savings
Loan Calculator & Tax Savings
Loan Calculator & Tax Savings
3-in-1 Loan Payment Calculator
Free

The application is a comprehensive Loan Calculator and Tax Savings tool that provides advanced analysis and unique features not found in other similar apps. It offers a quick calculator, a simple interface for on-the-go analysis, and an extended mode for detailed loan evaluation. Key features include tax savings estimates, amortization tables, and comprehensive total cost calculations to help users make informed decisions about their loans and affordability.

πŸ’° Finance
(97)
17
Compound Interest Calculator A
Compound Interest Calculator A
Compound Interest Calculator A
Investment, Savings, Loan Calc
Free

This powerful financial calculator helps you take control of your finances by providing tools to calculate compound interest, plan savings, assess loan repayment timelines, and more. With its intuitive interface and multi-currency support, you can easily plan and visualize your financial growth and make informed decisions.

πŸ’° Finance
(48)
18
Simple Compound Interest
Simple Compound Interest
Simple Compound Interest
by Stack3
Free

This compound interest calculator helps you plan your investments by estimating your final return, total investment amount, and return rate. Simply enter your capital, monthly deposit, annual interest, and investment period to get started and track your progress.

πŸ’° Finance
(22)
19
Loan Calculator - Payment Calc
Loan Calculator - Payment Calc
Loan Calculator - Payment Calc
Personal, Home, Car, Boat,…
Free

An easy-to-use loan calculator app for various types of loans like car, home, personal, and more. Input loan details such as amount, term, interest rate, and frequency to calculate payments, compare options, and export results. Contact for assistance at phannhatd@gmail.com.

πŸ’° Finance
(963)
20
Loan-U-Later
Loan-U-Later
Loan-U-Later
by Justin Hawkwood
Free

This loan and investment calculator helps users compute various aspects of a loan or investment, including interest rates and total interest paid or contributed. It also generates an amortization table for the current calculation, making it easier to plan and manage finances.

πŸ’° Finance
(21)