Comparison

FIREシミュレーション vs Accumulate+ Compound Interest

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

Head to head
About

FIREシミュレーション

Features
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あなたのFIRE、本当に実現できる? 3分でわかる、人生とお金の未来シミュレーター 【FIREシミュレーションとは】 FIREシミュレーションは、「いつFIREできるのか?」「何歳まで働けばいいのか?」を資産・収入・支出の情報から可視化できるアプリです。 ・いつFIREしたい? ・貯金はいくらある? ・FIRE後の生活費や収入は? ・投資額、利回りはどのくらい? これらを入力するだけで、将来の資産推移をグラフで確認できます。結果は画像で保存・共有もOK! 【主な機能】 ● ライフプランに応じた収支を細かく設定 ・収入、支出を複数登録可能 ・それぞれに期間設定ができるから、人生の節目に合わせてシミュレーション可能 ● たとえばこんな使い方 ・子どもの教育費は高校〜大学の期間だけ多めに ・老後の食費や交通費は少なめに調整 ・「この年齢までは働く」など柔軟に入力 ・一時的な出費(車の購入・旅行など)も反映! ● シミュレーション結果は画像で保存・共有可能! ・可能かどうかの結果だけではなく、支出や収入を項目ごとに合計し見える化します 【こんな方におすすめ】 ・早期リタイア(FIRE)を目指している方 ・定年後の資産計画を立てたい方 ・家族のライフイベントを考慮した人生設計をしたい方 ・すでにFIRE中の方も、今後の生活の持続性をチェックできます 人生設計を“見える化”して、未来の安心を手に入れよう。 ※アプリによる結果はあくまでシミュレーションですので、実際にFIREが可能であることを保証するものではございません。FIREは慎重にご判断ください。

About

Accumulate+ Compound Interest

Features
Read full description

See exactly how your savings grow, and compare your options side by side. Accumulate+ is a compound interest calculator built for long-term investors. Enter your starting amount, expected annual return, regular contribution (monthly or yearly) and time horizon, and the app instantly charts how your wealth compounds year by year. Save each scenario as a record, then compare records or combine them into one total. 【Key Features】 ■ Compound Interest Calculator • Instant results from principal, contributions, return rate and years • Monthly or yearly contributions • Charts that separate what you put in from what you earned ■ Quick Setup • One-tap presets for 401(k) and Roth IRA to get started in seconds • Adjust any value afterwards to match your own plan ■ Compare (up to 3 scenarios) • Put different return rates, contributions or timeframes side by side • Charts and a summary table make the differences obvious • Find the plan that gets you to your goal ■ Combine • Stack several records into one chart to see your total across accounts • Great for 401(k) + IRA + brokerage, or several savings goals at once ■ Withdrawal Planning • Model drawing down your savings by a fixed amount or a fixed rate • See how long your money lasts and how the balance changes each year ■ Year-by-Year Table • Every year's total principal, interest, balance and return • Show your age and the calendar year alongside each row ■ Made for iPhone and iPad • On iPad, your records, chart and table sit side by side. No switching screens • Live preview while you create or edit a record on iPad • Dark Mode, large text sizes and VoiceOver supported 【Perfect For】 • Retirement savings: 401(k), IRA, Roth IRA and brokerage accounts • Financial independence and early retirement (FIRE) planning • Dollar-cost averaging: seeing what steady monthly investing adds up to • Saving toward a goal such as a home, college or an emergency fund • Teaching (or learning) how compound interest really works 【Why Accumulate+】 • Clean, focused interface. No sign-up, no account required • A handful of inputs. The app handles the math • Clear charts backed by detailed tables • Free to use. Focus Mode hides ads for a while after you watch one Start with what you have, stay consistent, and let time do the heavy lifting. Download Accumulate+ and see where your plan takes you. Note: This app provides calculations for educational purposes only and does not constitute financial advice. Returns are not guaranteed. Please consult a qualified financial advisor for personalized guidance.

Screenshots

FIREシミュレーション4 screens
Accumulate+ Compound Interest4 screens

Verdict

The call

The clearest difference is update cadence: FIREシミュレーション at every 2 days against Accumulate+ Compound Interest's every 10 days. Accumulate+ Compound Interest's advantage is iOS requirement (16.0 vs 18.2). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FIREシミュレーション ships an update every 2 days, Accumulate+ Compound Interest every 10 days. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

Scorecard2 real differences · 4 level
FIREシミュレーション versus Accumulate+ Compound Interest: the parameters behind the verdict, then further details
ParameterFIREシミュレーションAccumulate+ Compound Interest
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 10 days
AdsYesYes
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS18.216.0 — better
Further details — not scored
Size13 MB11 MB
Age rating4+4+
DeveloperMario TanakaHIROSHI TANABE

In-app purchases

None

FIREシミュレーション

No in-app purchases

None

Accumulate+ Compound Interest

No in-app purchases

Questions

Is FIREシミュレーション free?
FIREシミュレーション is free to download, with no in-app purchases.
Is Accumulate+ Compound Interest free?
Accumulate+ Compound Interest is free to download, with no in-app purchases.
Do FIREシミュレーション or Accumulate+ Compound Interest have ads?
Both FIREシミュレーション and Accumulate+ Compound Interest show ads.
Which is updated more often, FIREシミュレーション or Accumulate+ Compound Interest?
FIREシミュレーション ships an update every 2 days, and Accumulate+ Compound Interest every 10 days. Most recently, FIREシミュレーション was updated on October 5, 2026 and Accumulate+ Compound Interest on September 29, 2026.

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