Comparison

複利Magic! vs FIRE Calculator

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

Head to head
About

複利Magic!

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少ない操作でカンタン複利の計算! 元金と毎月積み立てた金額の複利を計算します 1ヶ月毎の利息と合計を表示します

About

FIRE Calculator

Visualize your entire financial future on a single timeline, from saving to retirement drawdown. Instantly adjust your plan with sliders and explore various withdrawal strategies. Track your net worth and assess plan reliability with a Monte Carlo simulation.

Highlights
  • Single timeline visualization
  • Instant plan updates via sliders
  • Multiple withdrawal strategy comparison
  • Side FIRE income integration
  • Net worth tracking
  • Monte Carlo success score
  • Year-by-year financial projection
Features
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See exactly how long your money lasts. FIRE Timeline turns retirement math into one picture: a single timeline from the day you start saving to the day you draw it all down — or the day it simply doesn't run out. Move one slider and watch your whole plan update instantly. No spreadsheets, no accounts, no waiting. WHAT YOU CAN DO • See your plan as one timeline — saving years and drawdown years, side by side • Ask "When can I FIRE?" or "How much can I spend a month?" and get an instant answer • Compare withdrawal strategies: fixed amount, the 4% rule, front-loaded spending, or design your own • Try Side FIRE — see how many years earlier you could quit full-time work with a bit of side income • Save the plans you're torn between and overlay them on one chart • Log your real net worth over time and see exactly where you've drifted from plan • A Monte Carlo success score shows how your plan holds up across 1,000 possible futures • Full year-by-year table from today to age 100+ BUILT FOR YOUR SITUATION Whether you're maxing out a 401(k) or IRA, chasing FIRE in your 30s, or already retired and drawing down, FIRE Timeline adapts the starting numbers to where you are. YOUR DATA STAYS ON YOUR DEVICE Every calculation happens locally. No account required. No ads that show themselves — you choose if and when to watch one. Free to start. Premium removes limits and unlocks the full feature set, with new features added regularly. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

複利Magic!4 screens
FIRE Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: 複利Magic! at none against FIRE Calculator's 2. 複利Magic! also leads on ads (none vs shown). FIRE Calculator's advantage is update cadence (every 2 weeks vs every 3 months). On price, device support and iOS requirement 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. FIRE Calculator sells 2 in-app purchases, starting at $1.99 per month. 複利Magic! asks for nothing beyond the download.

UpkeepUpdate frequency

複利Magic! ships an update every 3 months, FIRE Calculator every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 5 level
複利Magic! versus FIRE Calculator: the parameters behind the verdict, then further details
Parameter複利Magic!FIRE Calculator
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.2 — better17.0
Further details — not scored
Size1 MB6 MB
Age rating4+4+
DeveloperShusuke HaramotoKe Tong

In-app purchases

None

複利Magic!

No in-app purchases

2 purchases

FIRE Calculator

Subscriptions2
  • Premium (Monthly)7 Days trial$1.991 Month
  • Premium (Yearly)7 Days trial$14.991 Year

Questions

Is 複利Magic! free?
複利Magic! is free to download, with no in-app purchases.
Is FIRE Calculator free?
FIRE Calculator is free to download, with in-app purchases available.
Do 複利Magic! or FIRE Calculator have ads?
FIRE Calculator shows ads; 複利Magic! does not.
Which is updated more often, 複利Magic! or FIRE Calculator?
複利Magic! ships an update every 3 months, and FIRE Calculator every 2 weeks. Most recently, 複利Magic! was updated on November 3, 2026 and FIRE Calculator on October 31, 2026.

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