Best Free Compound Interest Calculator Apps

231+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated July 2026

Out of 231+ free 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 Free Compound Interest Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CompounderCompounderFree4.8★ (3.4K)NoNoJul 2026
2Compound Interest CalcCompound Interest CalcFree4.8★ (6.4K)YesYesJul 2026
3Compound Interest Calculator XCompound Interest Calculator XFree4.8★ (574)YesNoJul 2026
4Compounding and Interest CalcCompounding and Interest CalcFree5.0★ (3)YesNoJul 2026
5Calculator: Compound InterestCalculator: Compound InterestFree5.0★ (2)YesNoMay 2026
6Compound Interest Calculator FCompound Interest Calculator FFree4.5★ (102)YesNoJul 2026
7Compound Interest Calculator.Compound Interest Calculator.Free4.0★ (8)YesYesMay 2026
8Compound Interest AppCompound Interest AppFreeNoYesJul 2026

Top Picks for Free Compound Interest Calculator

Compounder#1

Compounder by James Bevins

Interest Calculator
Editor's Choice
💰 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
Compound Interest Calc#2

Compound Interest Calc by Dane Hankamer

Plan | Invest | Retire
Strong Contender
💰 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 X#3

Compound Interest Calculator X by Leno Labs LLC

Future Value of Money & Stocks
Worth Considering
💰 Finance
4.8(574 ratings)
FreeAds
Compound Interest Calculator X screenshot 1
Compound Interest Calculator X screenshot 2
Compound Interest Calculator X screenshot 3
Compound Interest Calculator X screenshot 4

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.

More Free Compound Interest Calculator apps to explore

4
Compounding and Interest Calc
Compounding and Interest Calc
Compounding and Interest Calc
Compound Interest Calculator
Free

Visualize your savings and investments growing over time with this straightforward compound interest calculator. Input your initial amount, interest rate, and duration to instantly see total growth, earnings, and future value.

Visualize money growthInstant calculationEnter starting amount
🔧 Utilities
(3)
ad-supported
5
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
6
Compound Interest Calculator F
Compound Interest Calculator F
Compound Interest Calculator F
Interest you earn on interest
Free

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.

Calculate future investment valueMultiple contribution frequenciesGraph and table visualizations
💰 Finance
(102)
ad-supported
7
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
8
Compound Interest App
Compound Interest App
Compound Interest App
Compound Interest Calculator
Free
💰 Finance
(0)
9
Loan Calculator‰
Loan Calculator‰
Loan Calculator‰
Simple Loan Calculator
Free

Easily calculate loan or mortgage payments. Simply input the loan amount, repayment term, and interest rate to get your estimated monthly payment.

Loan calculationMortgage calculationAmount input
💰 Finance
(96K)
ad-supported
10
Compound Interest Cal
Compound Interest Cal
Compound Interest Cal
Fast Finance
Free

Calculate the potential growth of your investments with this fast and easy compound interest calculator. It features a clean, customizable interface with options for various timeframes and display modes.

Calculate compound interestCustomizable time options (years, months, weeks, days)Clean and simple UI
💰 Finance
(0)
free
11
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
(14K)
subscription
12
Compound Percentage Calculator
Compound Percentage Calculator
Compound Percentage Calculator
Compound Interest Calculator!
Free
🔧 Utilities
(0)
13
Interest Calculator: Finance
Interest Calculator: Finance
Interest Calculator: Finance
Compound & Savings Calc
Free

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.

Compound & Simple Interest CalculationFixed Deposit (FD) & CD AnalysisRecurring Deposit (RD) Tracking
💰 Finance
(856)
freemium
14
Compound Interest Calc.
Compound Interest Calc.
Compound Interest Calc.
Basic compounding calculator
Free
💰 Finance
(0)
15
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
16
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
17
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
18
RECalc Mortgage Calculator
RECalc Mortgage Calculator
RECalc Mortgage Calculator
Mortgage/loan calculator
Free

Calculate mortgage payments, loan amounts, interest rates, and terms. This app also functions as a standard calculator and supports semi-annual compounding. View loan summaries and amortization tables, and email or save your calculations.

Calculate monthly payment, term, interest rate, loan amountStandard mathematical calculationsSemi-annual compounding support
💰 Finance
(2.6K)
free with in-app purchases
19
Compound Interest - Calculator
Compound Interest - Calculator
Compound Interest - Calculator
Financial Investment & Savings
Free

This app helps you plan and predict investment growth using a predictive formula for compound interest. It allows you to easily calculate long-term returns on savings and investments to achieve financial goals like buying a house or retiring early.

Predictive compound interest formulaCalculate future investment valueAdjust initial investment, contributions, growth rate, and time
💰 Finance
(3)
free
20
Compound Interest Calculator I
Compound Interest Calculator I
Compound Interest Calculator I
Invest | Growth | Finance
Free

Visualize your investment growth with this intuitive calculator. Input your initial investment, interest rate, and contributions to see how compound interest exponentially grows your savings over time. Essential for informed financial planning.

Visualize investment growthCalculate compound interestTrack initial investment
🔧 Utilities
(22)
free with in-app purchases

FAQ about Free Compound Interest Calculator

What are the best free compound interest calculator apps for iPhone?
Compounder tops our free compound interest calculator apps ranking as of July 2026, with a 4.8-star average from 3.4K App Store ratings, and it's free to download.
Compounder has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 231+ free compound interest calculator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Compounder is a financial tool that helps you calculate the power of compound interest to reach your financial goals. It allows you to model the growth of savings, investments, and retirement funds by factoring in initial principal, periodic contributions, and even withdrawals.
The app offers quick compound interest calculations with flexible settings. You can easily factor in periodic withdrawals or additional contributions to see their impact on your financial growth. Its interface is designed to be user-friendly for anyone wanting to understand compound interest without needing a finance background.