Comparison

TurnCompound vs Compound Interest Calc

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

Head to head
About

TurnCompound

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Plan Your Financial Future — Spin, Explore, Decide TurnCompound puts the power of compound interest at your fingertips — literally. Use the interactive Dial to spin through scenarios in real time, watching your money grow with every turn. No spreadsheets, no complexity. Whether you need a compound interest calculator, retirement calculator, savings goal planner, or FIRE calculator, TurnCompound has all four in one app. As your financial calculator and growth planner, it adapts to any scenario you can imagine — from your first $100 to your retirement nest egg. Four Powerful Calculators in One App Investment Growth Set your starting balance, expected return, and contribution frequency. Add monthly savings or lump-sum deposits at any point in your timeline. See your total value broken down into contributions and earned interest — instantly. Withdrawal Simulator How long will your portfolio last? Simulate retirement income or early withdrawal strategies. Get a clear picture of your ending balance, total withdrawals, and exactly when your money runs out — if it does. Savings Goal Planner Set a target and we'll tell you exactly how much to save each month. Adjust your timeline, return rate, and starting amount to find the plan that fits your life. Coast FIRE Calculator Find out how much you need to save now so your investments grow on their own — no more contributions needed. Set your target retirement age and see your Coast FIRE number, the age you can stop saving, and how your money coasts to your goal. The Dial — A New Way to Plan Forget typing numbers. Spin the dial to adjust any parameter — initial amount, monthly savings, years, return rate — and watch your results update live. It's financial planning that feels intuitive. Interactive Charts & Tables - Year-by-year breakdown of your investments - Stacked bar charts separating principal from interest - Drag across the chart to explore any year in detail - Switch to table view for exact numbers - Haptic feedback as you explore Fully Customizable - 9 currencies supported (USD, EUR, GBP, BRL, JPY, and more) - Set your default return rate and compound frequency - Weekly, monthly, quarterly, or yearly contributions - All settings update calculations in real time Designed for Simplicity - Clean, distraction-free interface - Dashboard with sparkline previews of all calculators - No login required — just open and calculate - Your settings persist automatically Who's It For? - First-time investors - FIRE (Financial Independence, Retire Early) planners - Coast FIRE enthusiasts - Retirement savers - Anyone who wants to stop guessing and start planning You don't need to be a financial expert to understand the power of compound interest. Start spinning your future — one turn at a time.

About

Compound Interest Calc

This app offers powerful tools to model financial growth, retirement withdrawals, and savings goals using compound interest calculations. It features simple and advanced modes, scenario comparison, and data export options.

Highlights
  • Compound interest, withdrawal, and goal calculators
  • Simple and Power calculation modes
  • Save and compare financial scenarios
  • Interactive charts and data tables
  • CSV and PDF data export
  • iCloud sync
Features
Read full description

Welcome to your financial CIC. Plan your financial future with powerful compound interest calculations. Whether you're growing your savings, planning retirement withdrawals, or working toward a specific goal, Compound Interest Calculator (CIC) gives you the tools to model it all. THREE CALCULATORS, ONE APP -Growth: See how your investments compound over time. Enter your principal, interest rate, and time horizon to watch your wealth grow. -Withdrawal: Plan your retirement drawdown. Find out how long your savings will last and calculate a sustainable withdrawal rate. -Goal: Work backwards from your target. Enter the amount you need and discover exactly what it takes to get there. Simple When You Want It, Powerful When You Need It Start with Simple mode for quick answers. Switch to Power mode to unlock advanced controls: contribution timing, compounding frequency, inflation adjustments, withdrawal strategies, and additional income offsets like Social Security or pensions. SAVE, COMPARE, & EXPORT Save your calculations as scenarios and compare them side by side. See how a 1% difference in returns or an extra year of saving changes everything. Export your data as CSV or generate professional PDF reports to share with your advisor. FEATURES - Compound interest, withdrawal, and goal calculators - Simple and Power calculation modes - Interactive charts and yearly data tables - Save and compare scenarios - Multiple compounding frequencies - Flexible contribution and withdrawal schedules - Inflation-adjusted projections - Fixed amount or percentage-based withdrawal strategies - CSV and PDF export - iCloud sync across all your devices - Dark mode support - Free to Use Auto Renewable Subscriptions: Pass subscriptions unlock all features and remove all apps from within the app. You will be charged through your App Store account. Subscriptions help support the app team, and allow us to continue to provide updates and new features. Subscriptions will automatically renew unless cancelled within 24-hours before the end of the current period. You can cancel anytime within your iTunes account settings. Any unused portion of a free trial (if applicable) will be forfeited if you purchase a subscription. Terms and Conditions (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.chuchutrain.com/privacy-policy.html

Screenshots

TurnCompound4 screens
Compound Interest Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: TurnCompound at none against Compound Interest Calc's 4. 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. Compound Interest Calc sells 4 in-app purchases, starting at $1.99 per 7 days. TurnCompound asks for nothing beyond the download.

UpkeepUpdate frequency

TurnCompound ships an update weekly, Compound Interest Calc every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
TurnCompound versus Compound Interest Calc: the parameters behind the verdict, then further details
ParameterTurnCompoundCompound Interest Calc
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 2 weeks
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better17.6
Further details — not scored
Size13 MB11 MB
Age rating4+4+
DeveloperErika AlbizzatiChuChu Train Productions

In-app purchases

None

TurnCompound

No in-app purchases

4 purchases

Compound Interest Calc

Subscriptions3
  • Weekly Pass$1.997 Days
  • Monthly Pass$4.991 Month
  • Yearly Pass$29.991 Year
One-time1
  • Lifetime Pass$99.99

Questions

Is TurnCompound free?
TurnCompound is free to download, with no in-app purchases.
Is Compound Interest Calc free?
Compound Interest Calc is free to download, with in-app purchases available.
Do TurnCompound or Compound Interest Calc have ads?
Both TurnCompound and Compound Interest Calc show ads.
Which is updated more often, TurnCompound or Compound Interest Calc?
TurnCompound ships an update weekly, and Compound Interest Calc every 2 weeks. Most recently, TurnCompound was updated on October 30, 2026 and Compound Interest Calc on October 31, 2026.

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