simpleFIRE vs Interest Calculator Manager

simpleFIRE puts three FIRE calculators in your pocket, with Monte Carlo and historical backtesting built in. Move a slider and see what you'll have, when you can stop working, and how long your money will last. PROJECTION Start with what you have, add what you invest each month, pick a period and an expected annual return. Watch your portfolio compound year by year, with your contributions and the interest they earn side by side. TIME TO FI Set your FI target and see the month you reach it, the passive income it pays, and how far along you are each year. Not sure of your number? Start from what you spend and the app suggests one. DRAWDOWN Start living off your portfolio and see how long it lasts: the month it would run dry, what you withdraw along the way, and whether your returns keep up with your withdrawals. MONTE CARLO, HISTORICAL OR FIXED RATE — YOUR CHOICE Markets never pay the same return twice. Switch any calculator to Monte Carlo and the app runs 5,000 simulations of your exact plan, updated live as you move a slider. Prefer real data? Historical backtests your plan the way the Trinity study tested the 4% rule: through every period of real S&P 500 and US Treasury returns, with the inflation each year actually brought. Or keep it simple with a fixed rate. Set your mix of stocks and bonds with one slider and read every answer as a plain chance: what you'll have, when you'll reach FI, how long your money lasts, and the odds it lasts as long as you need. EVERY NUMBER, EXPLAINED Every result starts with the question it answers. Tap it for the full picture: a chart you drag through year by year while the numbers follow your finger, contributions and interest for every year, the year your money starts earning more than you add, and every assumption behind the result. Inflation is one tap away: see any result in today's money or as your account will show it. About in Settings explains how every number is calculated and where the market data comes from. PREMIUM — ONE PAYMENT, NO SUBSCRIPTION - Time to FI and Drawdown - Monte Carlo and Historical, with your own stocks and bonds mix and the chance you plan with - Saved profiles: keep several plans and switch in a tap - Calculation settings: inflation, contribution frequency, timing and yearly increases, withdrawal timing, compounding, withdrawal rate, planning horizon - PDF and image reports: share a clean summary of any plan Projection is free and stays free. No ads anywhere in the app. PRIVATE BY DESIGN No account, no sign-in, no tracking, no analytics. Your numbers stay on your device, every simulation runs on it, and the app asks for no permissions. Built for iPhone and iPad, and it runs on Mac too. Six languages, dark and light themes, your currency, your number format. simpleFIRE gives you estimates based on the assumptions you set and on past market data, which does not guarantee future returns. It is a calculator, not financial advice. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Interest Calculator Manager – Finance, Loan & Investment Calculator Take control of your everyday financial calculations with Interest Calculator Manager, an all-in-one calculator designed for interest, investments, loans, mortgages, percentages, profit margins, commissions, sales tax, and more. Whether you're estimating how much an investment could grow, calculating interest on savings, comparing loan payments, checking a percentage increase, or determining the final price after sales tax, Interest Calculator Manager gives you the tools you need in one convenient app. No complicated spreadsheets or manual formulas—just enter your values and get clear results in seconds. Interest & Compound Interest Calculator Calculate simple and compound interest for savings, deposits, investments, and other financial scenarios. Enter your starting amount, interest rate, and time period to estimate how your money may grow. Adjust the values to compare different scenarios and better understand the effect of interest rates and compounding over time. The calculator supports: Simple interest calculations Compound interest calculations Daily, monthly, and annual periods Investment growth estimates Recurring contribution calculations Principal and interest breakdowns Percentage Calculator Quickly solve common percentage calculations without working through formulas manually. Calculate percentages, percentage increases, percentage decreases, discounts, tips, markups, taxes, and other everyday values. Whether you're a student solving a math problem, a shopper checking a discount, or a business owner calculating price changes, the percentage calculator makes the process fast and straightforward. Loan & Mortgage Calculator Planning a loan or considering a mortgage? Estimate payments based on the loan amount, interest rate, and repayment period. Change your numbers to compare different loan scenarios and understand how rates or terms may affect your estimated payments. It's a convenient tool for exploring personal loans, auto loans, mortgages, and other financing scenarios. Investment Calculator Explore potential investment growth over time using different starting amounts, contribution levels, interest rates, and time periods. Compare scenarios to see how compounding and recurring contributions can affect long-term results. It's useful for savings goals, investment planning, and understanding the mathematics behind compound growth. Profit, Margin & Markup Calculator Business owners, freelancers, sellers, and entrepreneurs can quickly calculate important pricing values. Use the built-in tools to calculate: Profit Gross margin Cost margin Markup Selling price Percentage profit Enter your cost and selling price to quickly understand your estimated profit and margin. Sales Tax Calculator Estimate sales tax and final purchase prices in seconds. Enter the purchase amount and applicable tax rate to calculate the estimated sales tax and after-tax total. You can also use the calculator to work backward when you already know the final price. It's useful for shopping, budgeting, travel, and business calculations. Commission Calculator Calculate commissions quickly based on sales amounts and commission percentages. This feature is useful for sales professionals, freelancers, agents, and anyone whose earnings depend on percentage-based commissions. Designed for Everyday Calculations Interest Calculator Manager combines multiple financial calculators into one simple app, reducing the need to switch between different calculator tools. Use it for: Interest and compound interest Loans and mortgages Investments and savings Percentages Sales tax Profit and margins Markups Commissions Discounts Financial planning The app is designed to work beautifully across iPhone and iPad, giving you quick access to useful calculations whenever you need them.