Compounder vs FFCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Calculate compound interest
- Flexible settings
- Factor in periodic withdrawals
- Factor in additional contributions
- Easy-to-use interface
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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!
FFCalc
This app helps you determine how long you need to save until financial independence. Input your income, expenses, and current savings to receive personalized retirement timelines. Visual charts and tables illustrate your projected savings growth year by year.
- Financial freedom timeline calculation
- Income and spending input
- Current savings tracking
- Projected savings charts
- Yearly savings tables
- Interest, tax, and inflation considerations
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With the Financial Freedom Calculator - FFCalc you can find out how long you have to save until you are financially free. Just enter some data about income, spendings and your current savings and this app will calculate how long you need to keep this income until you can retire or do whatever you want. You also get nice charts and tables with your available savings for each year. Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Compounder at none against FFCalc's 4. Compounder also leads on rating (4.8 vs 4.6) and review sentiment (61% vs 48%). 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
Both are free to download. FFCalc sells 4 in-app purchases, starting at $2.99 per 7 days. Compounder asks for nothing beyond the download.
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 408, 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 48% of FFCalc's.
Compounder ships an update every 3 weeks, FFCalc monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Compounder | FFCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.3K ratings) — better | 4.6 (408 ratings) |
| Positive reviews | 61.4% of reviews — better | 47.8% of reviews |
| Number of ratings | 4.3K — better | 408 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | James Bevins | Voglhuber |
Customer experience
Compounder
FFCalc
User reviews
Compounder
From 4.3K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Instant results
- 💡 Helps explain investments
- 🚀 Simple and easy to use
- 👍 Best and easiest compound calculator
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
- 🐛 Can't click off of monthly to quarterly, yearly, or weekly
- 🐛 Compound frequency stuck on monthly after update
FFCalc
From 408 App Store ratingsWhat we love
- 👍 Easy to use
- 👍 Great tool
- 👍 Awesome app
- 👍 Superb app
- 👍 Simple to understand
Room to improve
- 💸 Ridiculous pricing
- 💸 Expensive subscription
- 📉 Inaccurate calculations
- 📉 Missing features
- 📉 Unclear calculations
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
FFCalc
Reported bugs
7 issues- Inaccurate monthly savings calculation
- Compound interest seems off
- Unclear inflation calculation frequency
- Unclear contribution timing
- Retirement expense calculation incorrect
Show 2 moreShow fewer
- App crashes
- Incorrect results with large numbers/long periods
Requested features
9 requests- Add monthly income support
- Add interest rate inputs
- More clarity on compounding
- Option to add income during retirement
- Add tax cost calculation
Show 4 moreShow fewer
- Add dark mode support
- Option to input monthly savings directly
- Ability to change earn rate during retirement
- Ability to change earn rate before retirement
In-app purchases
Compounder
No in-app purchases
FFCalc
- Weekly Plan3 Days trial$2.997 Days
- Monthly$3.991 Month
- Yearly$8.991 Year
- Lifetime$29.99
Questions
Is Compounder free?
Is FFCalc free?
Which has better reviews, Compounder or FFCalc?
Do Compounder or FFCalc have ads?
Which is updated more often, Compounder or FFCalc?
Other comparisons
