Comparison

通貨換算 vs Trarrency

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

Head to head
About

通貨換算

Features
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海外旅行、外貨計算の強い味方!◎は、世界160ケ国の通貨を即座に日本円、その他外貨に換算できるシンプルなアプリです。 ウィジェット表示にも対応しているため、アプリを開くことなく即座に通貨を換算することが可能です。 ◆アプリの特徴◆ ・アプリを開くことなく、ウィジェット上で素早く通貨換算が可能 ・世界160以上の通貨に対応 ・外貨から日本円、外貨から外貨、どちらの計算にも対応 ・最新の為替レートを自動で取得(1日2回) ・換算レートの手動設定にも対応 ・ホーム画面からすぐにアプリを起動できる ・オフライン環境で利用可能(初回起動以降)

About

Trarrency

Features
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Trarrency was created from real-world experiences while shopping abroad. Have you ever stood in a foreign store, calculator in hand, tapping away just to figure out, “*How much is this, really?”* We’ve been there, and that’s exactly why we built Trarrency. **Trarrency isn’t just a currency converter.** It helps you instantly understand what foreign prices really mean in your home currency, giving you the confidence to make smarter shopping decisions overseas. With its intuitive step-based comparison view and accurate conversions, you’ll never feel lost when browsing price tags again. **Key Features:** - Real-Time Currency Conversion - Supports dozens of currencies with automatic daily updates for accurate rates. - Smart Price Ladder Comparison - Enter any amount and get a series of nearby prices (like 199, 299, 399…) with converted values, helping you quickly compare similar items. - Conversion History Log - Easily save and revisit past conversions for convenient tracking. - Custom Numeric Keypad - A built-in calculator-style keypad designed for quick and easy input. - Favorite Currencies - Pin commonly used currencies to your home screen for faster access. Trarrency, make shopping abroad clear, quick, and smarter.

Screenshots

通貨換算4 screens
Trarrency4 screens

Verdict

The call

The clearest difference is in-app purchases: 通貨換算 at none against Trarrency's 1. 通貨換算 also leads on ads (none vs shown) and update cadence (daily vs weekly). Trarrency's advantage is device support (3 vs 1) and iOS requirement (13 vs 18.0). On price 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. Trarrency sells 1 one-off in-app purchase. 通貨換算 asks for nothing beyond the download.

UpkeepUpdate frequency

通貨換算 ships an update daily, Trarrency weekly. The most recent releases landed on October 25, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 1 level
通貨換算 versus Trarrency: the parameters behind the verdict, then further details
Parameter通貨換算Trarrency
PriceFreeFree
Update frequencyDaily — betterWeekly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.013 — better
Further details — not scored
Size14 MB71 MB
Age rating4+4+
DeveloperKENICHI YAMAMOTOKo Jui Lin

In-app purchases

None

通貨換算

No in-app purchases

1 purchases

Trarrency

One-time1
  • Remove Ads$3.99

Questions

Is 通貨換算 free?
通貨換算 is free to download, with no in-app purchases.
Is Trarrency free?
Trarrency is free to download, with in-app purchases available.
Do 通貨換算 or Trarrency have ads?
Trarrency shows ads; 通貨換算 does not.
Which is updated more often, 通貨換算 or Trarrency?
通貨換算 ships an update daily, and Trarrency weekly. Most recently, 通貨換算 was updated on October 25, 2026 and Trarrency on October 13, 2026.

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