Best compound interest calculator for iPhone
Compare iPhone compound interest calculators for monthly contributions, inflation-adjusted projections, and retirement planning.
Investment Simulator is our pick if you want to model investment growth and turn a savings or retirement goal into a monthly contribution. If you mainly want a chart for one growth estimate or need to model weekly deposits, other iPhone apps may fit better.
Investment Simulator publishes this guide and makes one of the apps listed. We compared documented features for common tasks using the U.S. App Store listings and our product documentation.
Which iPhone calculator fits your goal?
| App | Best for | What to compare |
|---|---|---|
| Investment Simulator | Growth, savings goals, and retirement planning | Model monthly deposits, taxes, and inflation. The retirement contribution estimate and growth chart are Pro features. Product overview |
| Compound & Savings Calculator | A straightforward growth estimate | Its listing describes a contribution breakdown and a year-by-year bar chart. Check the listing for ads and purchase options. U.S. App Store |
| Compound Interest Calc | Deposits on a weekly or quarterly schedule | The listing describes several contribution frequencies and a separate withdrawal mode. U.S. App Store |
Try the same inputs before choosing
Start with $10,000, add $300 at the beginning of each month for 20 years, and use 6% effective annual return and 2.5% annual inflation, with taxes and extra deposits set to zero. Investment Simulator projects about $168,765 in future dollars, or $102,992 in today’s purchasing power.
If two calculators give different answers, check when they add deposits and whether the annual input is an effective return. Compare future balances with future balances and inflation-adjusted balances with inflation-adjusted balances.
Open the example in the web calculator or use the App Store button below to try Investment Simulator on your iPhone.