CompoundFX vs Compound

CompoundFX is the compound interest calculator that shows you what it takes, not just what you'll have. Model investment growth, plan for retirement, and pressure-test your FIRE goals with precision. Set a goal, $1M by age 60, a down payment, or a college fund, and CompoundFX solves for the missing piece. The rate you’ll need. The years it will take. The deposit you have to make. No more guessing. No more trial and error. GOAL MODE Pick your goal. Choose what to solve for. CompoundFX does the financial math. - Solve for Rate of Return - Solve for Time Horizon - Solve for Starting Principal - Solve for Monthly Contribution COMPARE SCENARIOS Should you save more or invest longer? Pay off debt or boost your 401(k)? Save scenarios and put them head-to-head. See the difference, the total dollar impact, and exactly when one strategy pulls ahead. A CALCULATOR THAT SHOWS ITS WORK - Real-time growth chart with milestone markers ($100K, $250K, $1M) - Year-by-year breakdown with full transparency - Inflation, Taxes, and Expense Ratios: See what you actually keep after fee drag - Daily, weekly, monthly, or annual contributions - Custom compounding intervals (Daily to Annually) - Sub-year precision for short-horizon plans DESIGNED FOR iPHONE & INDIE DEV Dark glass UI. Smooth haptics. Built natively in SwiftUI for iOS 17 and up. No accounts. No ads. No tracking. Your scenarios stay locally on your device. EXPORT AND SHARE Generate a polished two-page PDF report with an executive summary, growth chart, and full milestone breakdown. Or share a branded image to text or social media. FREE FEATURES - Full compound interest calculator - Real-time growth chart and year-by-year table - Inflation, tax, and expense adjustments - Custom contribution and compounding schedules - Branded image sharing PRO: $4.99 (ONE-TIME PURCHASE) - Goal Mode (Solve for any missing variable) - Save unlimited scenarios - Compare scenarios side-by-side - Export two-page PDF reports One purchase. Unlocked forever. Family Sharing fully supported. WHO IT'S FOR Whether you're starting your first Roth IRA, managing index funds, planning early retirement, modeling a college fund, or tracking a Bogleheads portfolio, CompoundFX gives you the answer in seconds. PRIVACY FIRST CompoundFX is fully offline. No data collection. No accounts required. No analytics. No third-party SDKs. Your personal finance data is stored safely on your device. DISCLAIMER CompoundFX is for educational and planning purposes. It does not provide investment, tax, or financial advice. Returns shown are projections based on the inputs you provide and do not guarantee actual investment performance. Questions or feedback? support@originsoftware.net

Compound interest is the eighth wonder of the world. Compound makes you feel it. Type in a starting amount, what you deposit (daily, weekly, monthly, quarterly or yearly) and an interest rate. Compound instantly plots your wealth curve on a beautiful interactive chart. Hold the chart and scrub through the years to watch your money grow. THE MOMENT THAT CHANGES EVERYTHING Compound finds your crossover year: the year your interest starts earning more than everything you put in. From that point on, your money works harder than you do. BUILT FOR CLARITY - Interactive growth chart with invested vs. interest, with haptic scrubbing - Full breakdown table, per year or per month - Effective rate (APY), time to double, and what your money earns per day - Inflation mode: see every amount in today's purchasing power - Growing deposits: model a yearly raise on your contributions - Compounding per day, week, month, quarter or year WHAT IF... ...you had put your exact plan into Bitcoin, gold, the S&P 500 or a savings account, starting 5 or 10 years ago? A dose of perspective, based on approximate historical returns. For perspective only; past performance says nothing about the future. SCENARIOS Save any plan, compare them head to head on one chart, and swipe to clean up. Your pension plan vs. your house fund vs. your FIRE dream. STAY ON TRACK Optional monthly wealth check on the 1st of every month: open the app and see what compounding did while you slept. 21 CURRENCIES Dollar, euro, pound, yen and more. PRIVATE BY DESIGN No account. No tracking. Everything stays on your device. Compound does not provide financial advice. Projections are mathematical illustrations based on the numbers you enter.