Compound Interest Simulator1.0.15 - App Store

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.

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Version History Small bug fixes. 1.0.15 10/25/2025 - New feature: Export to PDF.
- New feature: "View monthly breakdown” from within annual breakdown view.
- New feature: A button to clear the current form data.
- Small bug fixes. 1.0.14 05/29/2024 - Added setting for the number of decimal places.
- Improved number formatting for multiple languages.
- Added support for new languages.
- Small bug fixes. 1.0.13 05/07/2024 - Added support for new languages.
- Small bug fixes. 1.0.12 04/01/2024 - Fixed a rarely occurring bug on welcome screen.
- Other small improvements to stability. 1.0.11 01/02/2024 - Fix to inconsistent or incorrect number formatting for some combinations of language and countries.
- Some minor bug fixes and stability improvements. 1.0.10 10/16/2023 - Resolved an issue where in cases where the user's preferred language was not yet supported by the app, the app would use German as its default language.
- Fixed some small bugs. 1.0.8 09/22/2023 - Added the ability to save and load calculations.
- Added "Advanced Mode" with several new options, such as multiple deposits and withdrawals. The previous calculation formula is now called “Basic Mode” and has not been changed.
- Added informative messages about calculation logic in "Basic Mode". This should help avoid confusion about the accuracy of the calculations.
- Added support for new languages (German, Italian and French)
- Various performance and appearance improvements. 1.0.7 09/18/2023 Fixed possible crash on device rotation.
Added a "splash" screen and improved "cold start" performance (i.e.: App should start faster and feel "snappier").
Minor tweaks to UI. 1.0.6 05/30/2021 Fixed a crash that could occur on initialization (resulted in a blank screen with infinite loading icon).
App now persists values between uses.
Fixed visual discrepancies that occurred on "dropdown" selectors in some screen sizes.
Performance improvements and small UI tweaks.
The application will no longer "hang" on a loading screen when there is no internet connection available. 1.0.5 05/12/2021 Updated App to match App Store's new Advertisement and Privacy quality standards.
Tweaked the base dark theme to be more legible following user feedback.
Small improvements to UI and better performance. 1.0.4 04/14/2021 1.0.3 12/24/2020