Best Compound Interest Calculator Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

Out of 249+ compound interest calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Compound Interest Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Compound Interest CalcCompound Interest CalcFree4.8★ (6.4K)YesYesAug 2026
2Compound Interest Calculator FCompound Interest Calculator FFree4.6★ (110)YesNoAug 2026
3CompounderCompounderFree4.8★ (3.4K)NoNoAug 2026
4Compound Interest Calculator XCompound Interest Calculator XFree4.8★ (574)YesNoAug 2026
5Compound Interest SimulatorCompound Interest SimulatorFree4.9★ (407)YesYesAug 2026
6EZ Financial CalculatorsEZ Financial CalculatorsFree4.4★ (51)YesNoAug 2026
7Calculator: Compound InterestCalculator: Compound InterestFree5.0★ (2)YesNoMay 2026
8Financial Calculator: PercentFinancial Calculator: PercentFree4.7★ (15K)NoYesAug 2026

Top Picks for Compound Interest Calculator

Compound Interest Calc#1

Compound Interest Calc by Dane Hankamer

Plan | Invest | Retire
Editor's Choice
💰 Finance
4.8😊(6.4K 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

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.

What We Love

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

Room to Improve

  • 🐛 Scaling issues on smaller devices
  • 🐛 Inaccurate calculations in certain scenarios
  • 🐛 Frequent ads disrupting user experience
Compound Interest Calculator F#2

Compound Interest Calculator F by An Do

Retirement FIRE Calculator
Strong Contender
💰 Finance
4.6(110 ratings)
FreeAds
Compound Interest Calculator F screenshot 1
Compound Interest Calculator F screenshot 2
Compound Interest Calculator F screenshot 3
Compound Interest Calculator F screenshot 4
Compound Interest Calculator F screenshot 5

Calculate and plan your investments to achieve financial independence and early retirement. Understand the power of earning interest on your interest with detailed projections and visualizations. Start snowballing your money today for a wealthier future.

Compounder#3

Compounder by James Bevins

Interest Calculator
Worth Considering
💰 Finance
4.8😊(3.4K ratings)
Free
Compounder screenshot 1
Compounder screenshot 2
Compounder screenshot 3

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.

What We Love

  • 👍 Easy to use
  • 🚀 Instant results
  • 💡 Helps explain investments
  • 🚀 Simple and easy to use

Room to Improve

  • 🐛 Glitchy and not user-friendly after update
  • 🐛 Can't use quarterly, monthly, or weekly buttons after update
  • 🐛 New version not working well on iPhone

More Compound Interest Calculator apps to explore

4
Compound Interest Calculator X
Compound Interest Calculator X
Compound Interest Calculator X
Future Value of Money & Stocks
Free

Calculate the future value of your investments with this accurate compound interest calculator. It supports decimal interest rates and offers seven compounding frequency options, along with the ability to include monthly contributions.

Decimal interest rate supportSeven compounding frequency optionsMonthly contribution calculation
💰 Finance
(574)
ad-supported
5
Compound Interest Simulator
Compound Interest Simulator
Compound Interest Simulator
Savings calculator and planner
Free

Visualize the growth of your savings and investments using compound interest. Plan for major purchases, retirement, or financial independence with detailed simulations and customizable options.

Compound interest simulationSavings growth visualizationBasic and Advanced modes
💰 Finance
(407)
free with in-app purchases
6
EZ Financial Calculators
EZ Financial Calculators
EZ Financial Calculators
by Bishinew Incorporated
Free

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.

Finance and Investment CalculatorsLoan and Mortgage CalculatorsRetirement Planning Tools
💰 Finance
(51)
ad-supported
7
Calculator: Compound Interest
Calculator: Compound Interest
Calculator: Compound Interest
by Seongho Cha
Free

This app calculates compound interest, showing how investments grow exponentially over time. It differs from simple interest by reinvesting earnings, leading to accelerated asset accumulation. Understand the power of compounding for your financial future.

Compound interest calculationExponential growth visualizationInvestment analysis
💰 Finance
(2)
ad-supported
8
Financial Calculator: Percent
Financial Calculator: Percent
Financial Calculator: Percent
Tax Percentage, Profit Margin
Free

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.

Over 40 built-in calculatorsFinancial calculators (ROI, IRR, NPV)Tax and profit margin calculations
💰 Finance
(15K)
subscription
9
Interest Calculator - Compound
Interest Calculator - Compound
Interest Calculator - Compound
Compound Interest & ROI
Free

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.

Customizable periods (years, months, weeks, days)Single or multiple tax rate calculationsVisual charts (pie, line, tax vs. inflation)
🔧 Utilities
(114)
free with in-app purchases
10
Compound Interest Calculator.
Compound Interest Calculator.
Compound Interest Calculator.
With an easy-to-use screen
Free

Easily calculate compound interest with this finance app. It offers a beautiful user interface and smooth animations to assist investors and others with quick calculations. The app is designed for simplicity and speed.

Fast compound interest calculationsBeautiful user interfaceAttractive screen animations
💰 Finance
(8)
free with in-app purchases
11
Quick Interest Calculator
Quick Interest Calculator
Quick Interest Calculator
by Goran Rauker
Free

Easily calculate compound interest for your savings. Input your initial balance, monthly contributions, savings duration, and interest rate to see your potential growth. This tool simplifies financial planning without complex data entry.

Compound interest calculationInput starting balanceInput monthly savings
💰 Finance
(24)
free
12
Compound Interest Calculator ・
Compound Interest Calculator ・
Compound Interest Calculator ・
Financial・Retirement・SIP Goals
Free

Visualize and optimize your savings and investments to reach financial goals. This tool accurately calculates compound interest, simulates growth and withdrawal scenarios, and helps you determine investment needs to achieve your targets.

Compound interest calculationGrowth and withdrawal planningGoal finder for financial targets
💰 Finance
(3)
free with in-app purchases
13
Vatti - Interest Calculator
Vatti - Interest Calculator
Vatti - Interest Calculator
Simple and Compound Interest
Free
🔧 Utilities
(0)
14
BA Financial Calculator
BA Financial Calculator
BA Financial Calculator
BAII Plus Emulator
Free

Emulates the TI BAII Plus financial calculator, offering identical functionality with a clean and user-friendly interface. It's designed for finance professionals and students preparing for exams like CFA, FRM, and CPA.

TI BAII Plus emulatorIdentical functionalityUser-friendly interface
💰 Finance
(3.3K)
ad-supported
15
Interest Calculator Compound
Interest Calculator Compound
Interest Calculator Compound
Easily Calculate Interest
Free
💰 Finance
(0)
16
PO Interest Calculator
PO Interest Calculator
PO Interest Calculator
PO Interest Calculator
Free

Calculate interest for various post office saving schemes with historical rate data. Automatically applies correct rates based on your scheme's start date. Supports RD, MIS, TD, SCSS, KVP, NSC, PPF, SSA, MSSC, and SB accounts.

Interest calculation for multiple PO schemesHistorical interest rate databaseAutomatic rate application by date
💰 Finance
(1)
ad-supported
17
Compound Interest Calculator #
Compound Interest Calculator #
Compound Interest Calculator #
Finance, Savings, Profit, ROI
Free
💰 Finance
(0)
18
12C Platinum Calculator
12C Platinum Calculator
12C Platinum Calculator
12C Platinum Calculator
Free
$0.99 | 100% OFF

This financial calculator offers over 120 built-in functions for complex calculations like IRR and NPV. It supports RPN entry, programming custom keystrokes, and includes features for loan payments, interest rate conversions, bond pricing, and statistical analysis.

120+ built-in financial functionsRPN keystroke entryProgrammable keystrokes (up to 99)
🔧 Utilities
(1)
free
19
Compound Interest Calculator 6
Compound Interest Calculator 6
Compound Interest Calculator 6
Plan Your Future!
Free

Precisely calculate investment growth for retirement, savings, and investment strategies. Visualize your financial future with interactive charts and real-time results. Designed for both beginners and experienced investors.

Advanced compound interest calculationsMultiple compounding frequenciesInteractive growth charts
🔧 Utilities
(1)
free with in-app purchases
20
InterIQ : Interest Calculator
InterIQ : Interest Calculator
InterIQ : Interest Calculator
Simple & Compound Interest Cal
Free

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.

Simple & Compound Interest CalculationsIntuitive User InterfaceCustomizable Parameters
💰 Finance
(2)
free

FAQ about Compound Interest Calculator

What are the best compound interest calculator apps for iPhone?
Compound Interest Calc tops our compound interest calculator apps ranking as of August 2026, with a 4.8-star average from 6.4K App Store ratings, and it's free to download.
Yes — 20 of the top compound interest calculator apps we rank are free to download, including Compound Interest Calc and Compound Interest Calculator F.
Compound Interest Calc shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ compound interest calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app is a financial planning companion that helps you calculate compound interest for investment growth and plan retirement withdrawals. It provides tools to visualize how your money grows over time with periodic contributions and how long your savings will last when accounting for inflation.
Key features include a Growth Mode to calculate investment growth with periodic contributions and visualize it with interactive charts, and a Withdrawal Mode to plan retirement withdrawals with inflation adjustments and calculate how long savings will last. It also offers detailed year-by-year breakdowns and real-time calculations.

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