Comparison

US単位コンバーター vs Unit Converter

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

Head to head
About

US単位コンバーター

Features
Read full description

アメリカ旅行・留学・駐在・海外生活でよく使う単位や計算を、まとめてすばやく確認できる便利ツールです。 華氏と摂氏、マイルとキロ、ポンドとキログラム、ガロンとリットルなど、日本とアメリカで異なる単位をかんたんに変換できます。さらに、時差計算、 チップ計算、USD/JPY為替換算、日米の祝日確認、日本住所の英語表記変換にも対応。 レストランでの会計、運転中の距離感、天気予報の温度、買い物中の重さや容量など、アメリカで「これ日本の感覚だとどれくらい?」と思ったときに役 立ちます。 主な機能: - 温度、距離、長さ、重さ、容量などの単位変換 - mph / km/h、mpg / km/L など車関連の変換 - US / JP の靴・服・指輪サイズ変換 - アメリカと日本の時差計算 - チップ計算と割り勘計算 - USD / JPY 為替換算 - アメリカ・日本の祝日カレンダー - 日本住所の英語表記変換 - 日本語 / 英語表示切り替え アメリカに行く前の準備にも、現地での生活にも使いやすい、シンプルな日米変換アプリです。

About

Unit Converter

Features
Read full description

A simple and easy-to-use unit converter app. Quickly and accurately convert commonly used units such as length, weight, temperature, area, volume, and speed. Just enter a number and it will automatically convert to the selected unit in real time. With a clean UI and history feature, anyone can use it intuitively. ● Key Features [Instant Unit Conversion] - Automatically converts as you type - Supports length / weight / temperature / area / volume / speed - Quickly select commonly used units - Real-time results [Supported Units] - Length: centimeter / meter / inch / foot, etc. - Weight: gram / kilogram / ounce / pound, etc. - Temperature: Celsius (℃) / Fahrenheit (℉) - Area: square meter / square foot / square mile / are, etc. - Volume: liter / milliliter / gallon, etc. - Speed: km/h / mph, etc. [Simple and Clean UI] - Minimal design focused on essential information - Large, easy-to-read text - Intuitive one-tap unit switching [Flexible History Management] - View conversion history in a list - Supports automatic or manual saving - Easily copy or delete history items [Quick Copy Feature] - Copy conversion results with a single tap [Customizable Settings] - Adjust decimal precision - Enable/disable haptic feedback - Choose how history is recorded [No Login Required] - No account needed — start using immediately From everyday calculations to work and study, enjoy a simple and stress-free unit conversion experience.

Screenshots

US単位コンバーター4 screens
Unit Converter4 screens

Verdict

The call

The clearest difference is update cadence: US単位コンバーター at every 3 weeks against Unit Converter's every 2 months. 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

US単位コンバーター ships an update every 3 weeks, Unit Converter every 2 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 5 level
US単位コンバーター versus Unit Converter: the parameters behind the verdict, then further details
ParameterUS単位コンバーターUnit Converter
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS16.4 — better17.6
Further details — not scored
Size41 MB11 MB
Age rating4+4+
DeveloperTaiki SaitoMITSUKO MARGOT KUBOTA ONO

In-app purchases

None

US単位コンバーター

No in-app purchases

None

Unit Converter

No in-app purchases

Questions

Is US単位コンバーター free?
US単位コンバーター is free to download, with no in-app purchases.
Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Do US単位コンバーター or Unit Converter have ads?
Both US単位コンバーター and Unit Converter show ads.
Which is updated more often, US単位コンバーター or Unit Converter?
US単位コンバーター ships an update every 3 weeks, and Unit Converter every 2 months. Most recently, US単位コンバーター was updated on October 20, 2026 and Unit Converter on October 7, 2026.

Other comparisons