Comparison

FIRE資産計算 vs 3s Kakeibo

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

Head to head
About

FIRE資産計算

Features
Read full description

積立・目標・FIRE(4%ルール)をサクッと試算。年利3/5/7%で比較して、将来資産のイメージを掴めます。

About

3s Kakeibo

Features
Read full description

The number one reason expense trackers fail? You forget to log. 3s Kakeibo shrinks the distance to zero. Log an expense right from where you are — no app launch required: • Home Screen widget: tap a smart preset amount, done (interactive, iOS 17) • Lock Screen widget: see this month's total, tap to log • Action Button & Siri: just say "log with 3s Kakeibo" • Control Center (iOS 18): one swipe, one tap INSIDE THE APP, 3 SECONDS FLAT The keypad is ready the moment the app opens, your last category is pre-selected, and four preset amounts re-order themselves by how often you use them. Mis-tapped? Undo within 10 seconds. NO PAYWALL, NO TRIAL LIMITS • Unlimited history: view and edit every record you ever logged • Monthly reports: category breakdown, month-over-month, daily average • Up to 8 ledgers and custom categories (up to 24) • Full-history CSV export ADS, AND HOW TO REMOVE THEM A banner sits at the bottom of the History and Report tabs — never on the entry, editing or settings screens, and never while the keyboard is up. One optional one-time purchase, "Remove Ads", makes it disappear for good. It unlocks nothing else, because nothing else is locked. PRIVATE BY DESIGN Your records never leave your device. No accounts, no bank linking, and no analytics. The app works fully offline. Figures shown are informational, based on your own records — not financial advice.

Screenshots

FIRE資産計算4 screens
3s Kakeibo4 screens

Verdict

The call

The clearest difference is in-app purchases: FIRE資産計算 at none against 3s Kakeibo's 1. FIRE資産計算 also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads 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. 3s Kakeibo sells 1 one-off in-app purchase. FIRE資産計算 asks for nothing beyond the download.

UpkeepUpdate frequency

FIRE資産計算 ships an update every 5 days, 3s Kakeibo every 3 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 3 level
FIRE資産計算 versus 3s Kakeibo: the parameters behind the verdict, then further details
ParameterFIRE資産計算3s Kakeibo
PriceFreeFree
Update frequencyEvery 5 daysEvery 3 days — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size31 MB7 MB
Age rating4+4+
DeveloperHiroto Ouchi丽佳 施

In-app purchases

None

FIRE資産計算

No in-app purchases

1 purchases

3s Kakeibo

One-time1
  • Remove Ads$0.99

Questions

Is FIRE資産計算 free?
FIRE資産計算 is free to download, with no in-app purchases.
Is 3s Kakeibo free?
3s Kakeibo is free to download, with in-app purchases available.
Do FIRE資産計算 or 3s Kakeibo have ads?
Both FIRE資産計算 and 3s Kakeibo show ads.
Which is updated more often, FIRE資産計算 or 3s Kakeibo?
FIRE資産計算 ships an update every 5 days, and 3s Kakeibo every 3 days. Most recently, FIRE資産計算 was updated on October 31, 2026 and 3s Kakeibo on October 24, 2026.

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