Comparison

Bolt Exchange vs 집계산

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

Head to head
About

Bolt Exchange

This app offers a straightforward currency conversion experience with a minimalist design. It allows for quick, one-click conversions and functions even without an internet connection, making it a lightweight and efficient tool.

Highlights
  • One-click currency conversion
  • Offline functionality
  • Minimalist design
  • Lightweight and small size
  • Easy to use interface
Features
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** Most Simple Currency Converter No more complex converter. It's easy to use - one click converting. Simple, Light, Minimum Size. Even works when no internet access.

About

집계산

Features
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Before buying a home, enter the price once to get acquisition tax, local education tax and the brokerage fee cap, plus a list of costs this app does not calculate, in one purchase-cost memo you can share. It never presents a single "total cash needed" number. Common calculations for buying, holding and renting property in Korea are also included. The app is in Korean and follows Korean tax and lending rules. 【Calculators】 • Acquisition tax • Capital gains tax (supported national-tax cases, incl. long-term holding deduction) • Holding tax (property tax components) • Loan interest: equal payment vs. equal principal • Loan limit: LTV and DSR terms shown separately as arithmetic examples (not an approved limit) • Jeonse/monthly rent conversion • Rental yield • Brokerage fee • Area conversion (pyeong / m²) Housing subscription points are not scored, because eligibility periods and dependents cannot be confirmed from the inputs; the screen lists the rules to check instead. History and favorites stay on your device, and you can share results with the app you choose. No ads, no tracking, no sign-up. From this version, some conditions without confirmed sources (certain acquisition-tax cases, rural special tax, a combined LTV/DSR limit, etc.) are shown as "not calculated in this app" instead of a number; previous records remain viewable. Results are estimates for reference. Each screen shows its check date, supported scope and excluded items; confirm actual taxes, loan limits and eligibility with the relevant authority, your bank or a tax professional.

Screenshots

Bolt Exchange3 screens
집계산4 screens

Verdict

The call

The clearest difference is ads: 집계산 at none against Bolt Exchange's shown. 집계산 also leads on update cadence (every 6 days vs every 19 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bolt Exchange ships an update every 19 months, 집계산 every 6 days. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Bolt Exchange versus 집계산: the parameters behind the verdict, then further details
ParameterBolt Exchange집계산
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews73.1% of reviews—
Number of ratings1 — better—
Update frequencyEvery 19 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size9 MB26 MB
Age rating4+4+
DeveloperSeokWoo RhoHeungYeol Kim

In-app purchases

None

Bolt Exchange

No in-app purchases

None

집계산

No in-app purchases

Questions

Is Bolt Exchange free?
Bolt Exchange is free to download, with no in-app purchases.
Is 집계산 free?
집계산 is free to download, with no in-app purchases.
Do Bolt Exchange or 집계산 have ads?
Bolt Exchange shows ads; 집계산 does not.
Which is updated more often, Bolt Exchange or 집계산?
Bolt Exchange ships an update every 19 months, and 집계산 every 6 days. Most recently, Bolt Exchange was updated on October 22, 2026 and 집계산 on October 25, 2026.

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