Comparison

Bolt Exchange vs KOTP 2

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

Head to head

Bolt Exchange

Most simple currency converter

Free

🔧 Utilities

★ 5.01 ratingsView app →

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

Read full description

** 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

KOTP 2

Features

Read full description

KoROAD 한국도로교통공단 OTP 앱 입니다. - 최신 iPhone 기기에 대응 합니다. (구 KOTP앱 대체)

Screenshots

Bolt Exchange3 screens

KOTP 23 screens

Verdict

The call

The clearest difference is ads: KOTP 2 at none against Bolt Exchange's shown. KOTP 2 also leads on update cadence (fortnightly 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, KOTP 2 fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level

Bolt Exchange versus KOTP 2: the parameters behind the verdict, then further details
Parameter	Bolt Exchange	KOTP 2
Price	Free	Free
Rating	5.0 (1 ratings) — better	—
Positive reviews	73.1% of reviews	—
Number of ratings	1 — better	—
Update frequency	Every 19 months	Fortnightly — better
Ads	Yes	No — better
In-app purchases	No	No
Monetization	Ad-supported	—
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	9 MB	26 MB
Age rating	4+	4+
Developer	SeokWoo Rho	UINS

In-app purchases

None

Bolt Exchange

No in-app purchases

None

KOTP 2

No in-app purchases

Questions

Is Bolt Exchange free?

Bolt Exchange is free to download, with no in-app purchases.

Is KOTP 2 free?

KOTP 2 is free to download, with no in-app purchases.

Do Bolt Exchange or KOTP 2 have ads?

Bolt Exchange shows ads; KOTP 2 does not.

Which is updated more often, Bolt Exchange or KOTP 2?

Bolt Exchange ships an update every 19 months, and KOTP 2 fortnightly. Most recently, Bolt Exchange was updated on November 1, 2026 and KOTP 2 on October 30, 2026.