Comparison

VoiceTra vs Japan Go

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

Head to head
About

VoiceTra

This app translates spoken words into multiple languages, offering both voice and text input. It's designed to facilitate communication for travelers and visitors, with features like instant translation direction switching and a user-friendly interface.

Highlights
  • Speech-to-speech translation
  • Supports 33 languages
  • Text input option
  • Instant translation direction switch
  • High-precision speech recognition
  • User-friendly interface
Read full description

VoiceTra is a speech translation app that translates your speech into different languages. VoiceTra supports 33 languages and can be downloaded and used for free. With an easy-to-use interface, you can also check if the translation results are correct. VoiceTra, whether to enhance your travel experience or to welcome visitors to Japan, will definitely come in handy as your personal speech translator. ■Features: VoiceTra utilizes high-precision speech recognition, translation, and speech synthesis technologies developed by the National Institute of Information and Communications Technology (NICT). It translates your spoken words into different languages and outputs the results in a synthesized voice. The translation direction can be instantly switched, allowing 2 people that speak different languages to communicate using a single device. Text input is available for languages that do not support speech input. VoiceTra is best suited for travel-related conversations and is recommended for situations and places such as below: ・Transportation: Bus, train, rent-a-car, taxi, airport, transit ・Shopping: Restaurant, shopping, payment ・Hotel: Check-in, check out, cancellation ・Sightseeing: Overseas travel, serving and supporting foreign customers *VoiceTra has also been introduced as a disaster-prevention, disaster-related app. While VoiceTra can be used as a dictionary to look up words, it is recommended to input sentences as it interprets the meaning from the context to output the translation results. ■Supported languages: Japanese, English, Chinese (simplified), Chinese (traditional), Korean, Thai, French, Indonesian, Vietnamese, Spanish, Myanmar, Arabic, Italian, Ukrainian, Urdu, Dutch, Khmer, Sinhala, Tamil, Danish, German, Turkish, Nepali, Hungarian, Hindi, Filipino, Bengali, Polish, Portuguese, Brazilian Portuguese, Malay, Mongolian, Lao, and Russian ■Restrictions, etc.: Internet connection is required. It may take a while to display the translation results depending on the network connectivity. Languages available for text input are those that the OS keyboard supports. The characters may not be displayed properly if the appropriate font is not installed on your device. Please note that some of the functions or the application itself may be disabled when the server is down. Users are responsible for the communication fees incurred to use the application. Please be aware that international data roaming charges can be expensive. This application was developed for research purposes; targeting individuals to test it out when traveling, and uses servers that are also setup for research purposes. The data recorded on the server will be utilized to make improvements in speech translation technologies. You may test out the app for businesses, etc., but please consider using private services that we have licensed our technology to for continuous use. Please refer to our "Terms of Use" for further details → https://voicetra.nict.go.jp/en/attention.html

About

Japan Go

Features
Read full description

Japan Go - 日本購 - 專為赴日旅遊小資族設計 - 結合日台匯率計算與記帳功能的APP 匯率換算、記帳再比價、切換不同APP好麻煩? 富吉君幫你! 【比價省心】 ▲計算機功能含折扣、稅額、退稅、加入常用計算等快速鍵, 輕鬆計算金額,比價好方便! 【花錢安心】 ▲日台匯率輕鬆切換,除了比價還能控制預算! 根據預算與旅行天數自動規劃每天消費額度,加上統計圖表, 有效控管出國花費,現金流一目瞭然! 【記得開心】 ▲能為每筆金額新增分類、備註、添加照片, 再也不會忘記買了什麼! ▲可新增、編輯、切換旅行, 為每場旅行留下最美好的回憶! #富吉君的日旅付錢「比」記 #比價省心花錢安心記得開心 #JapanGo富吉君幫你

Screenshots

VoiceTra3 screens
Japan Go4 screens

Verdict

The call

The clearest difference is in-app purchases: VoiceTra at none against Japan Go's 4. On price, update cadence, ads 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. Japan Go sells 4 in-app purchases, starting at $0.99 per 7 days. VoiceTra asks for nothing beyond the download.

UpkeepUpdate frequency

VoiceTra ships an update every 4 months, Japan Go every 6 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
VoiceTra versus Japan Go: the parameters behind the verdict, then further details
ParameterVoiceTraJapan Go
PriceFreeFree
Rating4.6 (203 ratings) — better—
Positive reviews78.9% of reviews—
Number of ratings203 — better—
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size69 MB54 MB
Age rating4+4+
DeveloperNICTGuan-Ting Su

In-app purchases

None

VoiceTra

No in-app purchases

4 purchases

Japan Go

Subscriptions3
  • JapanGoPro 週付版$0.997 Days
  • JapanGoPro 月付版$1.991 Month
  • JapanGoPro 年付版$14.991 Year
One-time1
  • 去除廣告$0.99

Questions

Is VoiceTra free?
VoiceTra is free to download, with no in-app purchases.
Is Japan Go free?
Japan Go is free to download, with in-app purchases available.
Do VoiceTra or Japan Go have ads?
Neither VoiceTra nor Japan Go shows ads.
Which is updated more often, VoiceTra or Japan Go?
VoiceTra ships an update every 4 months, and Japan Go every 6 months. Most recently, VoiceTra was updated on November 6, 2026 and Japan Go on November 3, 2026.

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