# Yaccel: AI Interpreter — Japanese, Clearly Understood > AI translation app for natural communication across language barriers. (iPhone/iPad app by Shuwa.) - Source: https://appshunter.io/ios/app/yaccel-ai-interpreter/id6767897083 (this page in markdown: same URL + `.md`) - Developer: [Shuwa](https://appshunter.io/developer/497377405) - Category: Reference, Productivity - Price: Free - Age rating: 4+ - Requires: iOS 18.5 · 74 MB - Languages: American English, Japanese, Vietnamese - Released: 2026-07-01 - Data updated: 2026-10-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/yaccel-ai-interpreter/id6767897083/reviews.md ## What is Yaccel? Cross the language barrier, together. Yaccel is an AI voice interpreter for conversations between Japanese and English, plus Vietnamese, Thai, Korean, and Chinese. It is made for the moments when you need to understand and be understood: a meeting, a landlord visit, a family conversation, a talk, or a trip. ■ Hear the speaker—even from your seat At a presentation or meeting, use your phone's built-in microphone to pick up a speaker at a distance and see the interpretation as they speak. Follow a talk from the audience, without needing to sit near the stage. ■ Follow the conversation, not just the words Meaning changes with the situation. Yaccel considers the flow of the conversation, so a Japanese response can be understood as the polite refusal, agreement, or nuance it is meant to convey—not merely translated word by word. ■ Ask what you missed Did a discussion move too quickly? Ask Yaccel in chat for a summary of what was just said or for the meaning behind a phrase. Catch up after a meeting or clarify a moment in a talk. ■ Speak face to face Tap either language button for two-way conversation interpreting. Turn the screen toward the other person to show large, easy-to-read text, then have the translation read aloud. ■ Write with more confidence Paste a chat screenshot to understand a message and get reply suggestions that fit the conversation. Use the Yaccel translation keyboard on iPhone to translate as you type in any chat. ■ Made for life in and with Japan For English speakers living, working, traveling, or building relationships in Japan—and for anyone who works with Japanese-speaking colleagues, managers, customers, friends, or family—Yaccel helps conversations keep moving. Languages: Japanese, English, Vietnamese, Thai, Korean, and Chinese. Terms of Use (EULA): https://yaccel-app.web.app/terms Privacy Policy: https://yaccel-app.web.app/privacy ## Key features - Real-time conversation translation - Chat translation for messaging apps - Image translation from screenshots - Context-aware translation - Supports various communication scenarios ## Is Yaccel safe? Not enough ratings yet to assess Yaccel. ## Is Yaccel legit? Yaccel: AI Interpreter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Yaccel is 68 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/yaccel-ai-interpreter/id6767897083/reviews.md ### 5/5 — もっとも人間らしい翻訳アプリ *2026-08-06* 海外の人と話をするならこれ一択です！日本人には必須のアプリです。 **Developer response:** ありがとうございます！ そう言っていただけて幸いです！ ## Frequently asked questions about Yaccel ### What is Yaccel? Yaccel is an AI translation app designed to help users communicate their intended message naturally across language barriers. It focuses on effective communication rather than just language learning. ### What are the main features of Yaccel? Yaccel offers real-time conversation translation, chat translation for messaging apps like LINE and Messenger, and image translation from screenshots. It also understands context for more natural translations. ### Who would benefit from using Yaccel? Yaccel is recommended for people traveling abroad, living overseas, in international marriages, working with foreign staff, or engaging in foreign language chats. It aims to make daily communication smoother. ### Does Yaccel support offline translation? The provided description does not specify offline translation capabilities for Yaccel. Its features focus on real-time and context-aware translation, suggesting an online connection may be required. ### How does Yaccel handle translation accuracy? Yaccel utilizes AI to understand context, conversation flow, and the relationship between speakers to generate natural translations. This approach aims for more accurate and nuanced communication than simple word-for-word translation. ### What devices is Yaccel available on? Yaccel is currently supported on iPhones. The app has been released on July 1, 2026, with the latest version being 1.6.0 as of July 13, 2026. ### Is Yaccel free to use? Yaccel is available for free. However, it does offer in-app purchases, indicating that some features or advanced functionalities may require payment. ### How often is Yaccel updated? The app was last updated on July 13, 2026, indicating a recent update. The release date was July 1, 2026, suggesting active development and support. ## Version history (last 5 releases) ### 1.20.1 — 2026-10-19 • Switch to another app while recording and the translation keeps flowing in a picture-in-picture window (Pro Plus) • The latest translations and a stop button now appear on the Lock Screen • Added yearly plans, the Business plan (30 hours a month) and a 5-hour interpreting pack • See this month's interpreting time and balance in Settings ### 1.18.3 — 2026-10-12 • During live interpreting, say "Yaccel, ..." to ask the help chat • The app name and your saved words are now translated correctly in translation, interpreting and the keyboard • Fixed the translation keyboard sometimes closing while typing after being opened many times • The keyboard now shows "Copied!" when you copy a translation, and buttons give haptic feedback • The translation keyboard requires iOS 26 or later ### 1.18.0 — 2026-10-07 • The translation keyboard can now read a copied chat screenshot: see a summary, a translation of each message and a suggested reply (paid plans). Then write your own reply and it's translated with that conversation in mind • Romaji (QWERTY) and multi-tap input; hold the space bar to move the cursor • When translating into Vietnamese, choose who you're writing to (older, younger, family…) for the right forms of address • Change keyboard settings right from the keyboard ### 1.16.0 — 2026-10-04 • Quick translations during conversations are now faster and more stable • New option to keep using the iPhone mic while earphones are connected • Fixed rare issues that could stall or delay interpreting ### 1.15.0 — 2026-10-03 翻訳キーボードで日本語入力 ヤクセルのキーボードで、そのまま日本語が打てるようになりました（フリック入力・かな漢字変換）。打った文は「翻訳」ボタンで、相手の言葉に置き換えられます。 コピーした文をすぐ翻訳 相手のメッセージをコピーしてキーボードを開くと、上に「コピーした文を訳す」が出ます。何語でも自動で判定して、日本語に訳します。 ## Apps similar to Yaccel | App | Rating | Price | Category | | --- | --- | --- | --- | | [Comprehensive Viet-Japan Dict.](https://appshunter.io/ios/app/comprehensive-viet-japan-dict/id1626253365) | — | $7.99 | Reference | ## More apps by Shuwa - [記者会見](https://appshunter.io/ios/app/id497377402) All apps by Shuwa: https://appshunter.io/developer/497377405 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*