Comparison

Compound Interest Simulator vs Coast FIRE Calculator

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

Head to head
About

Compound Interest Simulator

Visualize the growth of your savings and investments using compound interest. Plan for major purchases, retirement, or financial independence with detailed simulations and customizable options.

Highlights
  • Compound interest simulation
  • Savings growth visualization
  • Basic and Advanced modes
  • Multiple deposit/withdrawal planning
  • Customizable compounding frequency
  • Retirement and financial independence planning
Features
Read full description

Simulate your investments and visualize the growth of your savings through the incredible power of compound interest. Whether you're an adept of the FIRE (Financial Independence, Retire Early) movement, planing to make a major purchase, or simply looking to understand how your money can grow over time to support a good retirement, this app will be a great asset in your journey for financial freedom. This calculator is ideal for simulating fixed income investments, planning your savings, visualizing wealth evolution, and achieving retirement goals or financial independence plans. Getting started with the "Basic Mode" is easy: Just input the initial amount of money (if any), an optional monthly deposit, the interest rate and how much time you are planing to keep your capital invested. This app will then show you all the information you need in a beautiful graph, accompanied by a detailed analysis for the selected period. For more customization, the 'Advanced Mode' offers additional features: You can add multiple deposits and withdrawals over time, choose different compounding frequencies (such as daily or quarterly), and adjust the number of days in a year. For example, you can simulate a scenario where you make significant monthly deposits for 30 years, and then begin making annual withdrawals of a percentage of the balance. This calculator is that flexible. Watch your money work for you, and achieve your financial goals with the magic of compound interest! Note: This app is for informational purposes only, may contain inconsistencies, and in no way replaces personalized financial advice from a qualified advisor. Investment decisions and life-saving strategies should be based on professional guidance and not on information from unknown sources on the internet. Terms of Use: https://codexception.com/terms-and-conditions Privacy Policy: https://codexception.com/privacy-policy

About

Coast FIRE Calculator

This app helps you calculate the investment amount needed to achieve financial independence by retirement. It models your portfolio growth based on various financial assumptions, allowing you to plan for a secure future.

Highlights
  • Calculate Coast FIRE number
  • Project year-by-year growth
  • Compare different scenarios
  • Track progress towards goals
  • Save and manage multiple calculations
  • Flexible retirement age and income planning
Features
Read full description

Ever wondered how much you need to invest today so your retirement nest egg grows on its own? The Coast FIRE Calculator helps you answer that question. “Coast FIRE” is a strategy within the FIRE (Financial Independence, Retire Early) movement that involves saving and investing enough early in life that, without further contributions, your portfolio will grow to fund retirement. Once you reach your Coast FIRE number, you can shift to work that covers only your current expenses while compound interest does the heavy lifting. Key Features: * Easy inputs: Enter your current age, target retirement age, desired retirement income, inflation assumptions and your preferred safe withdrawal rate. * Automatic Coast FIRE calculation: Instantly see your Coast FIRE number and the age at which you’ll hit it, based on your assumptions. * Scenario comparison: View default and slower‑growth scenarios to understand how varying investment returns change your path. * Year‑by‑year projections: Get a detailed table showing annual growth and portfolio balances from now until retirement. * Progress tracking: See your current progress toward your Coast FIRE number, both in today’s dollars and at retirement. * Save & manage calculations: Save multiple scenarios (e.g. “Coast at 30,” “Coast at 38,” “Coast at 40”) and revisit them later to track your progress. * Flexible retirement planning: Explore different retirement ages and income targets. Understand how changes in inflation, investment growth and withdrawal rates affect your nest egg. Coasting to financial freedom doesn’t mean quitting work entirely; it means knowing your future is secure so you can enjoy life on your own terms. Download the Coast FIRE Calculator to demystify your retirement goals and see if you’re on track for financial independence.

Screenshots

Compound Interest Simulator4 screens
Coast FIRE Calculator4 screens

Verdict

The call

The clearest difference is price: Compound Interest Simulator at Free against Coast FIRE Calculator's $4.99. Compound Interest Simulator also leads on rating (4.9 vs 1.0) and ratings volume (424 vs 1). Coast FIRE Calculator's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On in-app purchases, device support and iOS requirement 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

Compound Interest Simulator is free to download; Coast FIRE Calculator costs $4.99 up front. Compound Interest Simulator sells 10 one-off in-app purchases and Coast FIRE Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Compound Interest Simulator holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Compound Interest Simulator has 424 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Compound Interest Simulator ships an update every 5 weeks, Coast FIRE Calculator every 2 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
Compound Interest Simulator versus Coast FIRE Calculator: the parameters behind the verdict, then further details
ParameterCompound Interest SimulatorCoast FIRE Calculator
PriceFree — better$4.99
Rating4.9 (424 ratings) — better1.0 (1 ratings)
Positive reviews81.0% of reviews—
Number of ratings424 — better1
Update frequencyEvery 5 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size47 MB30 MB
Age rating4+17+
DeveloperAndre Leite Barbosa CostaAtaraxia Labs

In-app purchases

10 purchases

Compound Interest Simulator

One-time10
  • Remove Ads & Unlock All Themes$0.99
  • Remove Ads & Unlock All Themes$1.99
  • Remove Ads & Unlock All Themes$2.99
Show 7 more
  • Remove Ads & Unlock All Themes$3.99
  • Remove Ads & Unlock All Themes$4.99
  • Remove Ads & Unlock All Themes$5.99
  • Remove Ads & Unlock All Themes$6.99
  • Remove Ads & Unlock All Themes$7.99
  • Remove Ads & Unlock All Themes$8.99
  • Remove Ads & Unlock All Themes$9.99
1 purchases

Coast FIRE Calculator

One-time1
  • Ad-Free Usage$8.99

Questions

Is Compound Interest Simulator free?
Compound Interest Simulator is free to download, with in-app purchases available.
Is Coast FIRE Calculator free?
Coast FIRE Calculator costs $4.99, and also offers in-app purchases.
Which has better reviews, Compound Interest Simulator or Coast FIRE Calculator?
Compound Interest Simulator is rated higher. Compound Interest Simulator averages 4.9 out of 5 from 424 ratings, while Coast FIRE Calculator averages 1.0 from 1 ratings.
Do Compound Interest Simulator or Coast FIRE Calculator have ads?
Compound Interest Simulator shows ads; Coast FIRE Calculator does not.
Which is updated more often, Compound Interest Simulator or Coast FIRE Calculator?
Compound Interest Simulator ships an update every 5 weeks, and Coast FIRE Calculator every 2 days. Most recently, Compound Interest Simulator was updated on October 29, 2026 and Coast FIRE Calculator on October 28, 2026.

Other comparisons