Compound Wealth Simulator is an overall app developed by Kyohei Hayakawa.
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App Information
Compound Wealth Simulator is FREE to download. The APK download size is 7.88 MB. The latest version available is 1.0.7. The last update was on May 17, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play 5 weeks ago.
Description
Compound Interest Calculator helps you visualize long-term investments with realistic, inflation-adjusted projections. Reverse-calculate from your savings goal, set independent contribution and growth periods, and plan with confidence for FIRE, retirement, or any long-term financial milestone.
■ Who this is for - Anyone planning long-term investments (IRA, Roth IRA, 401(k), ISA, NISA, iDeCo) - The FIRE community - Retirement planners - Goal-based savers - Inflation-conscious investors
■ 3 Calculation Modes - Calculate — Future value from initial assets and contributions - Reverse — Required monthly contribution to reach your goal - Compare — 3 return scenarios side by side
■ Independent Contribution Period Set your contribution years separately from your overall growth period (e.g. contribute for the first 10 years of a 30-year horizon, then let the balance compound). The chart highlights when contributions stop with a visual marker.
■ "Time to Goal" Reverse Calculation Calculate how long it takes to reach your target as "X years Y months." Just enter your monthly contribution and assumed return rate.
■ Inflation-Aware Display both nominal and real (purchasing-power) returns. Especially useful for users in high-inflation economies who want to understand the true future value of their savings.
■ 23 Currencies, 7 Languages Major world currencies including USD, EUR, GBP, JPY, CNY, KRW, INR, BRL, MXN, TRY. UI in English, Japanese, Chinese, Korean, Hindi, Spanish, and Portuguese.
■ Locale-Aware Number Formatting - Japan / China — 万, 億, 兆 - India — Lakh, Crore - English-speaking — K, M, B, T Numbers display in the format locals naturally read.
■ Privacy & Ads - All calculations happen on-device. Your input data is never sent to our servers. - This app is free, supported by in-app advertising.
■ Technical - iOS 15.6 or later - iPhone only
■ Disclaimer Calculations are simulations and do not guarantee future investment performance or inflation rates. Investment decisions are your own responsibility.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.