Multilingual Speech Translation Application

Communicate with the world using "VoiceTra"!

with the world
using "VoiceTra"!

Download on the App Store

Get on Google play

* Data communication via the Internet is required to use the app and users are responsible for the fees incurred.

VoiceTra movie
Play to learn about "VoiceTra"

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What's new

Server Oct. 8, 2019
The following updates have been made to the server:
- Improved Filipino text-to-speech quality
- Added disaster-related terms to the dictionary (ja, en, zh, ko)
iOS Oct. 3, 2019
VoiceTra ver.8.0.1 (for iOS) has been released.
- Fixed display bugs in several areas
Android Oct. 2, 2019
VoiceTra ver.8.0.1 (for Android) has been released.
- Fixed an issue where the app could not be launched

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What's VoiceTra…

Using VoiceTra

VoiceTra is a speech translation app that translates your speech into different languages. With an easy-to-use interface, you can also check whether the translation is correct.

VoiceTra translates between 31 languages *.

*Includes dialects of Chinese and Portuguese.

Download and use for free.**

**Data communication via the Internet is required to use the app and users are responsible for the fees incurred.

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Supported OS versions


10 or later


5.0 or later

*Operation is not guaranteed for all devices running on the above OS versions.


Since Oct. 2018, series of updates have been made to the supported OS versions for VoiceTra due to security reasons. New installations, reinstallations, and updates of the app cannot be completed with devices running older OS versions. Versions older than Android 5.0 are no longer supported as of Mar. 26, 2019.

Scheduled updates of supported OS versions:
Oct. 2018- iOS9.0 or later / Android5.0 or later
Dec. 2018 - iOS10.0 or later
Mar. 26, 2019 - Apps running on versions older than Android5.0 are no longer available.
(TBD) Dec. 2019 - iOS11.0 or later

*Further updates will be announced on the Support Site and Facebook.


This application utilizes speech recognition, machine translation, and speech synthesis technologies developed by the National Institute of Information and Communications Technology (NICT). Users who wish to use the technologies for commercial purposes, etc. are requested to contact NICT.