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Best Free Compound Interest Calculator Apps

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

Out of 250+ 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 (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CompounderCompounderFree4.8★ (3.4K)NoNoAug 2026
2Compound Interest CalcCompound Interest CalcFree4.8★ (6.5K)YesYesSep 2026
3Compound Interest Calculator FCompound Interest Calculator FFree4.7★ (178)YesNoAug 2026
4Compound Interest AppCompound Interest AppFree—NoYesJul 2026
5Compound Interest Calculator.Compound Interest Calculator.Free4.0★ (8)YesYesAug 2026
6Calculator: Compound InterestCalculator: Compound InterestFree5.0★ (2)YesNoMay 2026
7Compound Interest ToolCompound Interest ToolFree—NoNoMay 2026
8Compound Interest FreeCalcCompound Interest FreeCalcFree—YesNoJul 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😊(6.5K 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

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#3

Compound Interest Calculator F by An Do

Retirement FIRE Calculator
Worth Considering
💰 Finance
4.7(178 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.

More Free Compound Interest Calculator apps to explore

4
Compound Interest App
Compound Interest App
Compound Interest App
Compound Interest Calculator
Free
💰 Finance
(0)
5
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
6
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
7
Compound Interest Tool
Compound Interest Tool
Compound Interest Tool
Calculate compound interest
Free
💰 Finance
(0)
8
Compound Interest FreeCalc
Compound Interest FreeCalc
Compound Interest FreeCalc
by Erik Johansson Barlund
Free
💰 Finance
(0)
9
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
10
Compound Interest Calculator Y
Compound Interest Calculator Y
Compound Interest Calculator Y
FIRE calculator, retire plan
Free
💰 Finance
(0)
11
Intriq Calculator
Intriq Calculator
Intriq Calculator
Unlock Your Financial Clarity
Free
💰 Finance
(0)
12
Compounder - The Interest Tool
Compounder - The Interest Tool
Compounder - The Interest Tool
Compound interest calculations
Free
💰 Finance
(0)
13
Compound Percentage Calculator
Compound Percentage Calculator
Compound Percentage Calculator
Compound Interest Calculator!
Free
🔧 Utilities
(0)
14
Compound Interest Cal+
Compound Interest Cal+
Compound Interest Cal+
Compound Interest Calculator+
Free
💰 Finance
(0)
15
CompoundIQ: Rule of 72
CompoundIQ: Rule of 72
CompoundIQ: Rule of 72
See How Fast Money Doubles
Free
💰 Finance
(0)
16
CompoundIQ: Future Value
CompoundIQ: Future Value
CompoundIQ: Future Value
by Nicholas Costa
Free
💰 Finance
(0)
17
Easy Compound Interest
Easy Compound Interest
Easy Compound Interest
Calculate compound interest
Free
💰 Finance
(0)
18
Compound Interest Free
Compound Interest Free
Compound Interest Free
by Fredrik Gisslen
Free
💰 Finance
(0)
19
Compound Interest Planner Pro
Compound Interest Planner Pro
Compound Interest Planner Pro
Smart Compound Growth Planner
Free
💰 Finance
(0)
20
Compound Interest Calculator V
Compound Interest Calculator V
Compound Interest Calculator V
Compound Interest Charts
Free
💰 Finance
(0)

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 August 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 August 2026.
We track 250+ free compound interest calculator apps on the iOS App Store as of August 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.