Comparison

Compounder vs Interest Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Compounder

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.

Highlights
  • Calculate compound interest
  • Flexible settings
  • Factor in periodic withdrawals
  • Factor in additional contributions
  • Easy-to-use interface
Features
Read full description

Compounder lets you easily calculate the power of compound interest to reach your financial goals—whether for savings, investments, or retirement planning. What is compound interest? Compound interest is the interest calculated on both the initial principal and the accumulated interest from previous periods. This powerful tool can make a big difference over time! Example: Imagine starting with $1,000 in savings, contributing $500 monthly at an 11% annual return. After 40 years, that account could grow to $4.38 million! Even small, regular contributions—like the average American car payment—can build lasting wealth. Features: Quickly calculate compound interest with flexible settings. Factor in periodic withdrawals or additional contributions to see how they affect your growth. Easy-to-use interface, designed for anyone wanting to understand and harness compound interest, without needing a finance background. You don’t need to be a Wall Street broker to become a millionaire. Start planning your financial future with Compounder today!

About

Interest Calculator

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.

Highlights
  • Compound & Simple Interest Calculation
  • Fixed Deposit (FD) & CD Analysis
  • Recurring Deposit (RD) Tracking
  • Investment Return Projection
  • User-Friendly Interface
  • Global Bank & Investment Terms
Features
Read full description

Looking for a powerful and versatile tool to manage your finances? The Interest Calculator app is designed for users from all countries, making it easy to calculate and understand various types of interest on your investments and savings. Whether you're dealing with fixed deposits (FD), certificates of deposit (CD), guaranteed investment certificates (GIC), recurring deposits (RD), or any other investment, this app is your go-to solution. Key Features: - Compound & Simple Interest: Calculate both compound and simple interest for accurate financial planning. - Fixed Deposits (FD): Quickly determine the returns on your fixed deposits with different terms and rates. - Certificates of Deposit (CD): Analyze your CD investments with ease, including interest rates and future values. - Guaranteed Investment Certificates (GIC): Get detailed calculations for GICs to plan your future investments. - Recurring Deposits (RD): Track and calculate the interest on your recurring deposits. - Investment Analysis: Evaluate different investment options and their potential returns. - Interest Rates: Input various interest rates to see how they affect your investment or savings. - Term & Time Calculations: Adjust the term and time period to suit your financial needs. - Fixed Deposits & Bonds: Comprehensive tools for calculating interest on fixed deposits and bonds. - Festgeld: Manage your Festgeld investments with precise calculations. - Future Value: Project the future value of your investments with compound and simple interest calculations. - Quick & Easy: User-friendly interface for quick and accurate results. - Bank & Investment Terms: Covers a wide range of bank and investment terms for global users. Whether you're a seasoned investor or just starting to save, the Interest Calculator app provides the tools you need to make informed financial decisions. Download now and take control of your financial future!

Screenshots

Compounder3 screens
Interest Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Compounder at none against Interest Calculator's 2. Compounder also leads on review sentiment (61% vs 40%) and ratings volume (4.3K vs 83). Interest Calculator's advantage is iOS requirement (14.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Interest Calculator sells 2 in-app purchases, starting at $2.99 per year. Compounder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Compounder holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Compounder has 4.3K ratings behind it against 83, so its average is the more settled of the two. Written reviews point the same way: 61% of Compounder's written reviews are positive against 40% of Interest Calculator's.

UpkeepUpdate frequency

Compounder ships an update every 3 weeks, Interest Calculator every 5 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
Compounder versus Interest Calculator: the parameters behind the verdict, then further details
ParameterCompounderInterest Calculator
PriceFreeFree
Rating4.8 (4.3K ratings) — better4.6 (83 ratings)
Positive reviews61.4% of reviews — better40.0% of reviews
Number of ratings4.3K — better83
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size3 MB8 MB
Age rating4+4+
DeveloperJames BevinsJatin Maniya

Customer experience

Compounder

All ratings4,261 ratings
Positive96.9%
Neutral1.7%
Negative1.5%
Written reviews57 reviews
Positive61.4%
Neutral12.3%
Negative26.3%

Interest Calculator

All ratings78 ratings
Positive91.0%
Neutral2.6%
Negative6.4%
Written reviews10 reviews
Positive40.0%
Neutral10.0%
Negative50.0%

Bugs and requests

Compounder

Reported bugs

3 issues
  • Calculation issues with initial investment
  • Formatting issues on mobile devices
  • Crashes after short usage

Requested features

5 requests
  • Add percentage option for withdrawal
  • Allow adjusting periodic contributions (weekly, monthly, etc.)
  • Include daily compounding option
  • Add inflation adjustment to contributions and outputs
  • Create a widget version

Interest Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Compounder

No in-app purchases

2 purchases

Interest Calculator

Subscriptions1
  • Interest Calculator Premium$2.991 Year
One-time1
  • Lifetime Access$9.99

Questions

Is Compounder free?
Compounder is free to download, with no in-app purchases.
Is Interest Calculator free?
Interest Calculator is free to download, with in-app purchases available.
Which has better reviews, Compounder or Interest Calculator?
Compounder is rated higher. Compounder averages 4.8 out of 5 from 4.3K ratings, while Interest Calculator averages 4.6 from 83 ratings.
Do Compounder or Interest Calculator have ads?
Neither Compounder nor Interest Calculator shows ads.
Which is updated more often, Compounder or Interest Calculator?
Compounder ships an update every 3 weeks, and Interest Calculator every 5 weeks. Most recently, Compounder was updated on October 26, 2026 and Interest Calculator on October 25, 2026.

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