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App Store Apps > Travel > VoiceTra
VoiceTra icon

VoiceTra

by NICT · Travel · Free
On the App Store since December 2012 · Data updated 2026-10-27

VoiceTra is made and published by NICT. AppBrain is an independent app data site and isn't affiliated with NICT. The app name, icon, screenshots and description belong to NICT and are shown as published on the App Store.

AppBrain's verdict

EstablishedLoved by users
Rating on App Store
4.55
203 ratings
Last updated
August 10, 2026
Size
68.8 MB

Users love it: 4.6 stars from 203 ratings. Its best ranking is #83 in Top Free, Travel in Japan.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

Comments on VoiceTra for iOS

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Store listing

By NICT, from the App Store
VoiceTra Screenshot 1 of 3
VoiceTra Screenshot 2 of 3
VoiceTra Screenshot 3 of 3
Screenshots by NICT, from the the App Store listing
Description by NICT Written by the developer, not by AppBrain. Click to read.
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
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
Free
App size
68.8 MB
Content rating
Everyone

Technologies used by VoiceTra

Releases

Updates seen on the App Store
Version
9.2.1
Launched
December 2012

No changelog data

Alternatives

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Rankings

App Store top charts
Highest rank
#83
Chart
Top Free
Travel
Country
Japan

App Store Rankings for VoiceTra

Top rankings

Rank Country Category List
83 Japan Travel Top Free

Ranking history in Japan

About the app and developer

About VoiceTra

VoiceTra is a travel app developed by NICT.

What is the rating of VoiceTra?

VoiceTra is rated 4.55 out of 5 stars, based on 200 ratings.

Is VoiceTra free?

VoiceTra is free. The app size is 68.80 MB. The latest version available is 9.2.1. The last update was on August 10, 2026.

What are the requirements for VoiceTra?

The app has a content rating of Everyone. The app has been available on the App Store since December 2012.

Developer information for NICT

NICT

Address:

Share VoiceTra

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