Voice Translator


9.0.3for iPhone, iPad and more
182 Ratings
70.5 MB
Dec 7, 2023
Update Date
Age Rating
Age Rating
Apps in this category do not contain restricted content.
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
VoiceTra Screenshots
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About VoiceTra

VoiceTra is a speech translation app that translates your speech into different languages.
VoiceTra supports 31 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.

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, Danish, German, Turkish, Nepali, Hungarian, Hindi, Filipino, 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
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What's New in the Latest Version 9.0.3

Last updated on Dec 7, 2023
Old Versions
・ Minor bug fixes
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Version History
Dec 7, 2023
・ Minor bug fixes
Jun 2, 2023
・ The animation effect of the mic button has been removed
・ The "Hold device to your ear to speak" feature has been removed
・ Minor bug fixes
Mar 29, 2023
・ Italian and Hindi speech recognition have been supported
・ Italian and Hindi text-to-speech have been supported
・ The supported OS versions have been updated to "iOS/iPadOS 14 or later," including iOS/iPadOS 16
Aug 1, 2022
・ Ukrainian translation, speech recognition, and text-to-speech have been supported
・ Arabic speech recognition has been supported
Dec 21, 2021
• Push-to-talk has been disabled
• Speech recognition is now available when pressing down the mic button longer than before
• The supported OS versions have been updated to "iOS13 or later," including iOS15
Mar 23, 2021
・Supported Mongolian text-to-speech
・The list of languages has been reordered
Dec 6, 2020
・Supported Mongolian speech recognition
・Notifications for new announcements will now be indicated with a red dot within the app
・The supported OS versions have been updated to "iOS12 or later"
Aug 12, 2020
・Supported French and Spanish language identification
・Supported Nepali text-to-speech
Apr 8, 2020
・Added a new feature which automatically determines the translation direction between 2 languages
・Minor bug fixes
Dec 9, 2019
・Minor bug fixes
Dec 4, 2019
・Minor bug fixes
Oct 3, 2019
・Fixed display bugs in several areas
Sep 30, 2019
・Language identification feature, which automatically detects what language is being spoken, has been added
・The maximum length for speech input has been increased from 10 to 20 seconds
・The maximum number of characters for text input has been increased from 100 to 250 characters
Apr 24, 2019
・Minor improvements.
Mar 26, 2019
・Supported Filipino text-to-speech.
・Minor improvements.
Dec 11, 2018
・Supported French text-to-speech.
・You can now change the translation target language by tapping the globe button on the bottom left of the main screen.
・The supported OS versions have been updated to "iOS10 or later".
Oct 31, 2018
・Filipino speech recognition has been supported.
・Khmer text-to-speech has been supported.
・Improved response time.
・The supported OS versions have been updated to "iOS9 or later".
Oct 2, 2018
・Filipino speech recognition has been supported.
・Khmer text-to-speech has been supported.
・Improved response time.
・The supported OS versions have been updated to "iOS9 or later".
Jun 14, 2018
・Spanish, German, and Russian speech synthesis have been supported.
・Dutch, Turkish, Hungarian, Hindi, Portuguese, and Malay speech recognition have been disabled.
・Turkish, Hungarian, Hindi, Polish, Malay, and Mongolian speech synthesis have been disabled.
・Minor bug fixes.
Apr 25, 2018
・Added a field for Inquiry Number in the settings screen.
Apr 11, 2018
・Added a notification feature which will display notifications accordingly.
・The screen displayed during speech input has been updated.
・Minor bug fixes.
Jan 25, 2018
・Speech recognition and synthesis for Chinese (Traditional) have been supported.
・Yamaha Corporation's "OMOTENASHI GUIDE" app can now be activated via VoiceTra.
Nov 22, 2017
・Screen rotation is now supported for iPads.
・You can now choose between male/female voices for speech output.
Sep 22, 2017
・Supports iOS11.
Jul 3, 2017
・Khmer speech recognition has been supported.
・Bug fixes.

VoiceTra FAQ

Click here to learn how to download VoiceTra in restricted country or region.
Check the following list to see the minimum requirements of VoiceTra.
Requires iOS 14.0 or later.
Requires iPadOS 14.0 or later.
iPod touch
Requires iOS 14.0 or later.
VoiceTra supports English, French, Indonesian, Japanese, Korean, Simplified Chinese, Spanish, Thai, Traditional Chinese, Vietnamese

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