Comparison

FI Scouts vs simpleFIRE

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

Head to head
About

FI Scouts

Features
Read full description

FI Scouts is an app that guides you on your way to financial independence. This app lets you track your net worth, FI number and your savings rate as often as you need to. FI Scouts shows your progress with big numbers and stunning charts, so you're always on top of your goals. All data entry is done manually for security reasons, and your data stays safe and private. FI Scouts helps you find your FI number and figure out when you can retire, if that's what you want given your current income and expenses. There's even milestones you can achieve to motivate you along the way! We are extremely open to your feedback, so please help us shape the app to your liking. Let us know if you have any feature requests. If you have any problems or need help, we are ready to answer your questions at hello@fiscouts.com. If you really enjoy the app or would like to support our work, then please consider sending us a tip. You can find the tip jar by tapping your profile picture. This helps us keep the app free and accessible and will allow us to keep adding new features over time. FIRST-CLASS PLATFORM SUPPORT We make an effort to support and provide the latest device features to you. If there's anything you're missing, let us know! ---- We utilize in-app purchases to allow you to send us a tip as a token of gratitude for our work. Tips are one-time purchases and can be sent as many times as you wish to. We greatly appreciate anything you can spare. Prices are clearly visible in the app. Tips are non-refundable. Please read our privacy policy and terms of use for more details at https://fiscouts.com/privacy-policy

About

simpleFIRE

Effortlessly plan your financial future with intuitive sliders and advanced settings. This ad-free calculator keeps your data private and secure on your device, offering a one-time purchase for lifetime access to all features.

Highlights
  • Intuitive sliders for financial input
  • Compound interest calculation
  • Advanced settings (withdrawal rates, inflation)
  • Ad-free experience
  • One-time payment for lifetime access
  • Privacy-focused, no data collection
Features
Read full description

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/

Screenshots

FI Scouts4 screens
simpleFIRE4 screens

Verdict

The call

The clearest difference is update cadence: simpleFIRE at every 6 days against FI Scouts's every 7 months. On price, ads, in-app purchases and device support 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. FI Scouts sells 3 one-off in-app purchases and simpleFIRE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FI Scouts ships an update every 7 months, simpleFIRE every 6 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
FI Scouts versus simpleFIRE: the parameters behind the verdict, then further details
ParameterFI ScoutssimpleFIRE
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 7 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size10 MB3 MB
Age rating4+4+
DeveloperFornuftig Investering ApSDAWID MICHAL MILCZAREK

In-app purchases

3 purchases

FI Scouts

One-time3
  • First class scout tip$0.99
  • Star scout tip$1.99
  • Eagle scout tip$3.99
1 purchases

simpleFIRE

One-time1
  • simpleFIRE Premium$24.99

Questions

Is FI Scouts free?
FI Scouts is free to download, with in-app purchases available.
Is simpleFIRE free?
simpleFIRE is free to download, with in-app purchases available.
Do FI Scouts or simpleFIRE have ads?
Neither FI Scouts nor simpleFIRE shows ads.
Which is updated more often, FI Scouts or simpleFIRE?
FI Scouts ships an update every 7 months, and simpleFIRE every 6 days. Most recently, FI Scouts was updated on October 25, 2026 and simpleFIRE on October 24, 2026.

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