Compound Savings Calculator vs TwoRetire

Compound interest is the closest thing to free money — but it only works if you can actually see it. CompoundCalc turns your principal, rate, and time into a clear projection so you know exactly how much your money will be worth. Most calculators spit out one lonely number. CompoundCalc draws the whole curve: a year-by-year growth chart, a running principal-vs-interest split, and a side-by-side of compound against plain simple interest — so you can watch returns start earning returns. WHAT YOU GET - A projected final balance from your principal, annual rate, and time horizon - A growth chart that shows exactly when compounding starts to snowball - Compound frequency you control: daily, monthly, quarterly, semi-annual, or annual - Recurring deposits modeled on a monthly, quarterly, or yearly schedule - A clean principal-vs-interest breakdown of every dollar you end up with - Saved scenarios you can compare to find the plan that grows fastest PERFECT FOR - Savers deciding how much to set aside each month - Investors sizing up long-term returns before committing - Anyone planning a retirement nest egg or emergency fund - Students learning how compounding and the Rule of 72 really work WHY NOT JUST USE A SPREADSHEET? Because a spreadsheet won't chart the snowball, split principal from interest, or let you flip between saved plans in a tap. CompoundCalc does the math the moment you move a slider — no formulas to fix, no cells to break. PRIVACY Every projection stays on your device. No accounts, no ads, no tracking — ever. FULL ACCESS CompoundCalc is free to project a balance and view the growth chart. Premium unlocks recurring deposits, unlimited saved scenarios and comparisons, and the full year-by-year breakdown table. Upgrade with a weekly or yearly subscription, or a one-time lifetime purchase. Subscriptions auto-renew until cancelled; manage or cancel anytime in your App Store account settings. Set a deposit, pick a rate, and see your money compound — start your first projection today. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact

Retirement isn't a solo project — so why plan it alone? TwoRetire is a retirement planning app built for couples. Instead of two separate spreadsheets or two different apps, you and your spouse see one shared plan — with each of you controlling exactly how much of your own accounts the other can see. WHAT YOU CAN DO • Track every retirement account — 401(k), Traditional/Roth IRA, taxable brokerage, HSA, and more — with your choice of full detail, totals only, or fully private per account. • Model your retirement timeline — drag a slider to see how retiring at 60 vs. 65 changes your household's net worth curve, decades into the future. • Compare withdrawal strategies — see the difference between a traditional withdrawal order and a strategy that fills your tax bracket, side by side. • Coordinate Social Security — a 3×3 claiming-age matrix for you and your spouse, break-even analysis, and survivor benefit planning. • Get an honest signal — a simple green/yellow/red indicator based on your actual projected shortfall, not a vague "you're on track" message. • Save and compare scenarios — "What if I retire at 62 instead of 65?" Save it, compare it against your baseline, and decide together. • Log the decisions that matter — freeze a scenario's assumptions when you make a real decision, so you can look back later and remember why. BUILT FOR TWO, PRIVATELY When you invite your spouse, you choose per account whether they see full details, just the total balance, or nothing at all. Nothing is shared until you explicitly turn it on — and visibility only ever gets more open, never less, so you always know exactly what's been seen. Your data lives in your own iCloud account. TwoRetire has no servers of its own — nothing is collected, nothing is sold, nothing is shared with third parties. Even shared data between spouses syncs directly through Apple's infrastructure, never through us. HONEST ABOUT WHAT IT DOES (AND DOESN'T DO) TwoRetire uses a straightforward, deterministic projection based on the assumptions you set — not Monte Carlo simulation, not a black box. Every number is explained in plain language, and a built-in FAQ walks through exactly what's calculated, what isn't (like state taxes), and why. This app is an educational planning tool to help you and your spouse have better conversations about retirement. It is not investment, tax, or legal advice — please consult a qualified professional for your actual decisions.