Comparison

RetireWhen vs FIRE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RetireWhen

This retirement calculator helps individuals and couples explore their financial future. Adjust assumptions like savings, salaries, and investment returns to visualize projected savings and spending through interactive charts and detailed year-by-year results. Plan for staggered retirements and understand the impact of your financial choices.

Highlights
  • Individual and couple retirement planning
  • Interactive chart sliders for retirement age and spending
  • Year-by-year financial projections
  • Adjustable financial assumptions (savings, salary, inflation)
  • Staggered retirement modeling
  • CSV export of results
Features
Read full description

RetireWhen: Explore Your Retirement Options When could you retire? How much could you spend? Explore the possibilities with RetireWhen, a retirement calculator for individuals and couples. Adjust your assumptions and see how your projected savings change through interactive charts and detailed, year-by-year results. PLAN FOR ONE PERSON OR TWO • Create individual profiles for each partner and a Combined household projection • Model different retirement dates, salaries, savings rates, and investment returns • See how a working partner’s income helps cover household spending during a staggered retirement • Include retirement income that increases with inflation, plus optional fixed income with its own start age • Adjust spending, salary growth, inflation, and investment-growth assumptions SEE THE EFFECT OF YOUR CHOICES • Explore retirement age and annual spending with interactive chart sliders • View yearly balances, investment growth, net contributions, and unfunded spending • See when your portfolio reaches zero and whether income still covers your expenses • Model a gradual transition between working-years and retirement investment returns • Export year-by-year results as CSV files to save or share DESIGNED FOR iPHONE DUO On an unfolded iPhone Duo, keep Settings beside your chart or results. Adjust your inputs and see the effect side by side. Fold the device or rotate it upright for a focused, single-column layout. RetireWhen also adapts to iPhone and iPad. GO FURTHER WITH RETIREWHEN PRO Unlock Pro with a one-time in-app purchase: • Remove ads • Save retirement plans and compare up to four scenarios • Estimate your earliest retirement age under your selected assumptions • Explore when both partners could retire in the same calendar year • Estimate affordable annual spending at your chosen retirement dates • Export PDF reports with charts, assumptions, retirement milestones, and plan comparisons The core calculator, individual and household profiles, charts, and detailed results are available free. No subscription is required. YOUR PLANS, ON YOUR DEVICE No sign-in is required. Financial inputs and saved plans are stored locally on your device. The free version displays Google ads, which may collect data as described in our Privacy Policy. Pro removes ads. UNDERSTAND THE ESTIMATE RetireWhen provides projections based on your assumptions. Actual returns vary, and losses early in retirement can change the outcome. Taxes, fees, and unexpected expenses may also affect your results. Estimates are for planning purposes and do not guarantee retirement outcomes. Explore your options. Plan your next chapter with RetireWhen.

About

FIRE

Calculate your financial independence date and track your progress with a live countdown. Explore different FIRE types and retirement scenarios with detailed projections. Everything is kept private on your device.

Highlights
  • Calculate FIRE number
  • Live countdown to financial independence
  • Home and Lock Screen widgets
  • Explore retirement scenarios
  • Monte Carlo simulations
  • Track investment growth
Features
Read full description

Know the date you could stop working, and see it move closer every time you invest. FIRE: Retirement Calculator is a FIRE calculator and retirement countdown for iPhone. Enter what you have invested, what you add each month and what you plan to spend. It works out your FIRE number, projects the month you reach it and your age then, and counts down to that date on your home screen. The widget follows your computed date, not one you type in, so when your investments grow, the countdown moves. No account, no ads, no tracking. We never see your numbers. WHAT IS A FIRE NUMBER? FIRE stands for Financial Independence, Retire Early. Your FIRE number is the amount you need invested to cover your spending without a paycheck: your annual expenses divided by a safe withdrawal rate. At the common 4% rule, spending $50,000 a year needs $1,250,000. The app shows the formula on your own numbers. THE FIRE TYPES • Traditional FIRE: your full annual expenses, covered at your withdrawal rate. • Lean FIRE: a frugal budget, 0.7× your expenses. • Chubby FIRE: a comfortable budget, 1.5× your expenses. • Fat FIRE: a no-compromise budget, 2× your expenses. • Coast FIRE: enough invested now to grow into your full number by your target age, with no more contributions. • Barista FIRE: part-time work covers part of your spending and your portfolio covers the rest. FREE, WITH NO TIME LIMIT • Your FIRE number and a live countdown to your financial-independence date • Home Screen widgets in three sizes, plus Lock Screen widgets • A Graphite or System widget background • Change any input and see the new date instantly: investments, contributions, spending, expected return, withdrawal rate, birth date • Amounts per month or per year, in your own currency • One-tap investment updates that move your date • A compound-interest growth chart to your FIRE date • Inflation-adjusted (real) returns, explained plainly • Reminders at each year to go, the final 200, 100, 30, 7 and 1 days, and when your plan projects 25%, 50% and 75% of your number • A monthly check-in on the 1st to keep your date current • An optional fixed target date • "How this is calculated", step by step on your numbers FIRE PRO: ONE-TIME PURCHASE • Explore scenarios: change one number and see how much sooner or later you get there • Chance of success: a Monte Carlo simulation of 2,000 market paths shows how often your money lasts • FIRE types: count down to Lean, Coast, Barista, Chubby or Fat FIRE, with a widget for each • Pension and Social Security: add income that starts at a set age and lowers your number • Account for taxes: add the tax on your withdrawals so your number reflects what you'll really need • Growth vs. savings: how much of your balance is contributions and how much is growth, year by year • History: your investments over time • Extra widget styles: progress ring and target date Every install starts with 14 days of full Pro. No card, no auto-charge. After that, your FIRE number, countdown, standard widget and growth chart stay free. QUESTIONS IT ANSWERS • When can I retire, and how old will I be? • What is my FIRE number? • How much do I need for Lean, Coast, Barista, Chubby or Fat FIRE? • How much sooner could I retire if I invest $500 more a month? • Will my money last to age 95? • How much more do I need once taxes on withdrawals are included? PRIVATE BY DESIGN Your plan stays on your device, and in your own private iCloud if you sync between devices. No account, no sign-in, no ads, no analytics. The app switcher shows a plain cover instead of your numbers, and an optional Face ID or Touch ID lock keeps the app closed until you confirm it's you. App Store privacy label: Data Not Collected. NO SUBSCRIPTION FIRE Pro is a single purchase. Restore it anytime on your other devices. FIRE: Retirement Calculator is an educational planning tool, not financial advice. Projections are estimates from the assumptions you enter, not guarantees. Available in English and Spanish.

Screenshots

RetireWhen4 screens
FIRE4 screens

Verdict

The call

The clearest difference is ads: FIRE at none against RetireWhen's shown. FIRE also leads on update cadence (weekly vs every 4 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RetireWhen sells 1 one-off in-app purchase and FIRE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for RetireWhen against 5.0 for FIRE. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

RetireWhen ships an update every 4 weeks, FIRE weekly. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
RetireWhen versus FIRE: the parameters behind the verdict, then further details
ParameterRetireWhenFIRE
PriceFreeFree
Rating5.0 (8 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better3
Update frequencyEvery 4 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size5 MB3 MB
Age rating12+4+
DeveloperOrestes MelgarejoKEVIN LAN

Customer experience

RetireWhen

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

FIRE

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

RetireWhen

One-time1
  • RetireWhen Pro$9.99
1 purchases

FIRE

One-time1
  • Fire Pro$19.99

Questions

Is RetireWhen free?
RetireWhen is free to download, with in-app purchases available.
Is FIRE free?
FIRE is free to download, with in-app purchases available.
Which has better reviews, RetireWhen or FIRE?
RetireWhen and FIRE are both rated 5.0 out of 5 on the App Store, from 8 and 3 ratings respectively.
Do RetireWhen or FIRE have ads?
RetireWhen shows ads; FIRE does not.
Which is updated more often, RetireWhen or FIRE?
RetireWhen ships an update every 4 weeks, and FIRE weekly. Most recently, RetireWhen was updated on November 5, 2026 and FIRE on November 6, 2026.

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