Compounder vs Roth IRA Calculator
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!
Roth IRA Calculator
Calculate your Roth IRA contribution limits for the current and previous tax years based on your Modified Adjusted Gross Income (MAGI). View detailed calculations and explore basic Roth IRA information.
- Calculate Roth IRA contribution limits
- View limits for current and previous tax years
- Enter filing status, birth year, MAGI, and contributions
- See calculated limits and remaining amounts
- Review IRS Worksheet 2-2 with your figures
- Explore hypothetical growth and savings schedules
- Roth IRA basics and backdoor Roth conversion information
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Find your remaining 2026 Roth IRA contribution limit from your filing status, MAGI and amounts already contributed. English interface; estimates for U.S. Roth IRA rules, not personalized tax advice. Enter your filing status, birth year, modified AGI, and contribution amounts. See each open tax year's calculated limit and remaining amount. After last year's contribution window closes, use its check row to examine a possible excess. Tap Show the math to read IRS Worksheet 2-2 with your figures, line by line. The app uses published 2025 and 2026 limits, including the phase-out and the worksheet's rounding rules. It distinguishes estimated MAGI, final MAGI, and amounts you have not entered. Explore hypothetical growth, an even savings schedule, Roth IRA basics, and background on backdoor Roth conversions. These are information only. No account, ads, or tracking. The developer does not collect your numbers; iOS device backups may include app data. Inputs in this version remain in memory and are cleared when the app closes. Not tax or investment advice. Not affiliated with the IRS.
Screenshots
Verdict
The clearest difference is ratings volume: Compounder at 4.3K against Roth IRA Calculator's 2. Roth IRA Calculator's advantage is update cadence (every 6 days vs every 3 weeks) and iOS requirement (13.0 vs 16.0). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Roth IRA Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Compounder has 4.3K ratings behind it against 2, so its average is the more settled of the two.
Compounder ships an update every 3 weeks, Roth IRA Calculator every 6 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Compounder | Roth IRA Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.3K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 61.4% of reviews | — |
| Number of ratings | 4.3K — better | 2 |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | James Bevins | HeungYeol Kim |
Customer experience
Compounder
Roth IRA Calculator
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
Roth IRA Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Compounder
No in-app purchases
Roth IRA Calculator
No in-app purchases
Questions
Is Compounder free?
Is Roth IRA Calculator free?
Which has better reviews, Compounder or Roth IRA Calculator?
Do Compounder or Roth IRA Calculator have ads?
Which is updated more often, Compounder or Roth IRA Calculator?
Other comparisons
