Smart Interpreter vs 為替電卓FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Interpreter
This free app translates speech between 28 languages and 37 sounds. It uses advanced technology for accurate translation and pronunciation, making communication and language learning easier.
- Speech to text and text to speech translation
- Supports 28 languages
- Translates 37 different sounds
- Free to use
- Accurate translation and pronunciation
- Siri voice input integration
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New features : Speak to Voice Translator. Just hold down the microphone and talk! A completely free multilingual intelligent translation app. Application developed by YouTeacher with combination technique. [Application Overview] Translate 28 languages and 37 different sounds for free. Use Siri for voice input. Translation and voice are using resources of global leading company. Translation accuracy and pronunciation, we realize quality that no other company has. [Scope of application] Communication with people who do not speak the same language. Suitable for learning different kinds of foreign languages. Multi-lingualization of menus in hotel, company, restaurant, etc. Voice search, voice guidance, voice narration, translation, interpreting, etc. [supported Language] Japanese, English, Chinese, Korean, Russian, French, Arabic, Portuguese, Czech, Danish, Dutch, Finnish, German, Greek, Polish, Spanish, Hungarian, Swedish, Vietnamese, Thai, Italian, Romanian Youteacherasia@gmail.com YouTeacher Co., Ltd. Department of Smart Translation Engine Development
為替電卓FX
This app combines a calculator with currency exchange functionality for over 140 countries. It's ideal for travelers needing to convert prices or for finance professionals tracking investments.
- Calculator function
- Currency conversion
- Exchange rate updates
- Supports 140+ countries
- Finance tracking
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為替電卓FXは電卓機能に為替の両替機能がついた両替電卓アプリです。 140ヶ国以上の国に対応した為替変換機能で、どんな旅行先もこのアプリ一つで対応可能！ 電卓機能がついているので複数の商品をまとめて計算し日本円で確かめることができます！ また、140ヶ国以上の国に対応しているのでFXなどのファイナンスにも最適！ 投資や資産形成をしている人にもオススメのアプリです！ ◆機能 ・電卓機能（基本的な四則演算） ・為替変更機能 ・両替機能 ◆こんな人におすすめです ・頻繁に色々な国へ旅行に行く人 ・海外でたくさん商品を買った時に、合計して母国の価格で確認したい人 ・FXや株などのファイナンスをしている人
Screenshots
Verdict
The clearest difference is review sentiment: 為替電卓FX at 81% against Smart Interpreter's 20%. 為替電卓FX also leads on update cadence (every 4 months vs every 14 months) and iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Smart Interpreter ships an update every 14 months, 為替電卓FX every 4 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.
| Parameter | Smart Interpreter | 為替電卓FX |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | 80.8% of reviews — better |
| Update frequency | Every 14 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | YouTeacher Inc. | Mirai Kuriyama |
Customer experience
Smart Interpreter
為替電卓FX
In-app purchases
Smart Interpreter
No in-app purchases
為替電卓FX
No in-app purchases
