VoiceTra vs Japan Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Speech-to-speech translation
- Supports 33 languages
- Text input option
- Instant translation direction switch
- High-precision speech recognition
- User-friendly interface
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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
Japan Plus
Scan Japanese product barcodes to instantly access product information translated into your preferred language. This utility app helps you understand products while traveling or shopping in Japan.
- AI barcode identification
- Instant product information
- Multilingual translation
- Barcode scanning utility
- Offline access (implied by utility)
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AI JAPAN PLUS — Your Smart Companion for Life in Japan Scan any Japanese product and instantly understand what it is, and how to use it — all in your language. FEATURES: - Instant barcode scanning with AI-powered explanation - JAI: Ask our AI voice assistant anything about Japan, hands-free - Discover curated places and hidden gems - Weekly personalized products and places recommendations - Supports 8 languages Perfect for tourists, expats, and anyone living or traveling in Japan. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: VoiceTra at none against Japan Plus's 3. VoiceTra also leads on ratings volume (203 vs 4). On price, rating, review sentiment and update cadence 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. Japan Plus sells 3 in-app purchases, starting at $3.29 per month. VoiceTra asks for nothing beyond the download.
Japan Plus holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: VoiceTra has 203 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 79% of VoiceTra's written reviews are positive against 85% of Japan Plus's.
VoiceTra ships an update every 4 months, Japan Plus every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | VoiceTra | Japan Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (203 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 78.9% of reviews | 84.6% of reviews — better |
| Number of ratings | 203 — better | 4 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 69 MB | 78 MB |
| Age rating | 4+ | +4 |
| Developer | NICT | Japão mais Fácil |
Customer experience
VoiceTra
Japan Plus
In-app purchases
VoiceTra
No in-app purchases
Japan Plus
- Premium Plan - Japan Plus$3.291 Month
- JAI Monthly$5.991 Month
- Japan Plus Premium Annual$22.991 Year







