Comparison

Japanese Islands vs かんたん通貨換算

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

Head to head
About

Japanese Islands

Explore detailed information on approximately 6,000 Japanese islands. Discover attributes like location, population, area, and access for each island. Ideal for anyone interested in Japan's diverse island geography.

Highlights
  • Information on 6,000+ Japanese islands
  • Detailed island attributes
  • Population and accessibility data
  • Geographical Information Authority of Japan approved map data
  • Includes island grouping and territorial information
Features
Read full description

This app contains information on approximately 6,000 islands in Japan. Island attribute information includes the island's name, kana name, English name, location, area, coast length, population, whether it's populated, island grouping name, applicable act, designated area name, basis for territorial sea only, basis for EEZ (Exclusive Economic Zone), populated remote territorial island (RTI) area, specific populated RTI area, name of populated RTI area, included nature park, natural monument, access, and notes. If you are interested in learning about islands in Japan, this app would be very useful. ■ Approved by GSI This map is a reproduction of the Digital Map 25000 (Geographical Names & Public Facilities) published by the Geospatial Information Authority of Japan (Approval Number JO-FUKU No.604 2014) ■ Exemption from Liability ASTI will not be held liable for anything that transpires as a result of using this app. No liability whatever will be accepted for any damage, injury or loss that may be suffered as a result of using the app.

About

かんたん通貨換算

Easily convert currencies for over 100 countries with near real-time exchange rates. Features a simple, intuitive design with country flags for quick recognition. Works offline using the last updated rates.

Highlights
  • Supports over 100 foreign currencies
  • Near real-time exchange rates
  • Simple and intuitive design
  • Offline functionality
  • Country flags for easy identification
  • One-tap currency conversion
Read full description

主な機能: ・100カ国以上の外貨をサポートし、ほぼ最新の為替レートを反映! ・シンプルで直感的なデザイン。初心者でも迷わず操作可能! ・オフラインでも使用可能!(両替為替レートは最後に取得したレートで換算) ・旅行先の国旗が表示されるので、通貨が一目でわかる! おすすめポイント: ・シンプルなUIで、余計な機能は一切なし! ・通貨の換算をワンタップで完了! ・動作も軽く、スマホのメモリを気にせず使えます! 対応している通貨: ・外貨は100カ国以上に対応しています。 ・代表的な通貨を列挙すると、アメリカドル (USD)、ヨーロッパ/ ユーロ(EURO)、 韓国ウォン (KRW)、 イギリスポンド (GBP)、オーストラリアドル (AUD)、 ニュージーランドドル (NZD)、シンガポールドル (SGD)、香港ドル (HKD)、タイバーツ (THB)、フィリピンペソ (PHP)、インドネシアルピア (IDR)、ベトナムドン (VND)、マレーシアリンギット (MYR)、中国人民元 (CNY)、他100カ国程度 このように、多くの国の通貨をカバーしています。

Screenshots

Japanese Islands3 screens
かんたん通貨換算4 screens

Verdict

The call

The clearest difference is price: かんたん通貨換算 at Free against Japanese Islands's $3.99. かんたん通貨換算 also leads on update cadence (every 10 days vs every 3 months). Japanese Islands's advantage is ads (none vs shown) and device support (3 vs 1). On rating, ratings volume and in-app purchases 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

かんたん通貨換算 is free to download; Japanese Islands costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Japanese Islands against 5.0 for かんたん通貨換算. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Japanese Islands ships an update every 3 months, かんたん通貨換算 every 10 days. Both last shipped on October 9, 2026.

Scorecard6 real differences · 3 level
Japanese Islands versus かんたん通貨換算: the parameters behind the verdict, then further details
ParameterJapanese Islandsかんたん通貨換算
Price$3.99Free — better
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size3 MB4 MB
Age rating4+4+
DeveloperTakafumi AMANORyoma Toda

Customer experience

Japanese Islands

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

かんたん通貨換算

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Japanese Islands

No in-app purchases

None

かんたん通貨換算

No in-app purchases

Questions

Is Japanese Islands free?
Japanese Islands costs $3.99, with no in-app purchases.
Is かんたん通貨換算 free?
かんたん通貨換算 is free to download, with no in-app purchases.
Which has better reviews, Japanese Islands or かんたん通貨換算?
Japanese Islands and かんたん通貨換算 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Japanese Islands or かんたん通貨換算 have ads?
かんたん通貨換算 shows ads; Japanese Islands does not.
Which is updated more often, Japanese Islands or かんたん通貨換算?
Japanese Islands ships an update every 3 months, and かんたん通貨換算 every 10 days. Most recently, Japanese Islands was updated on October 9, 2026 and かんたん通貨換算 on October 9, 2026.

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