# ReadLang WatchLang — Langbrowser Vocabulary Builder > Browser extension for language learning with dual subtitles and website translation. (iPhone/iPad app by Nguyen Hong Phuc.) - Source: https://appshunter.io/ios/app/readlang-watchlang/id1602114377 (this page in markdown: same URL + `.md`) - Developer: [Nguyen Hong Phuc](https://appshunter.io/developer/1519084763) - Category: Education, Utilities - Price: Free - Rating: 4.40/5 from 59 App Store ratings · 28 written reviews indexed - Age rating: 17+ - Requires: iOS 15.1 · 27 MB - Languages: American English - Released: 2021-12-29 - Data updated: 2026-09-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/readlang-watchlang/id1602114377/reviews.md ## What is ReadLang WatchLang? ReadLang WatchLang - Highlight Translate Vocabulary in Browser Learn Languages: Watch YouTube video with dual subtitle player & Read website with translator Watch YouTube video with dual subtitle player & Read website with translator Do you know Learning with Texts (LWT), ReadLang, Lingq, LingoTube, Flowlingo, Redwiki, Tedict, Idiom ... LangBrowser works the same way. Help linguist learn a language fluently while browsing and reading their favourite blogs or news or watch video on Youtube, learn English with ted,.. add context to the vocabulary then practice, and learn in context, listening to youtube video with native pronunciations “FOCUS ON CONTEXT WITH TRANSLATION” - Translate words & phrases on any web page with one tap - YouTube video player with two (duo) subtitle at the same time Learn Languages: Learn English, Spanish, German, Korean, Japanese, 100+ languages... ( Afrikaans, Albanian, Amharic, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bengali, Bosnian, Bulgarian, Catalan, Cebuano, Chinese, Corsican, Croatian, Czech, Danish, Dutch, English, Esperanto, Estonian, Finnish, French, Frisian, Galician, Georgian, German, Greek, Gujarati, Haitian Creole, Hausa, Hawaiian, Hebrew, Hindi, Hmong, Hungarian, Icelandic, Igbo, Indonesian, Irish, Italian, Japanese, Javanese, Kannada, Kazakh, Khmer, Kinyarwanda, Korean, Kurdish, Kyrgyz, Lao, Latvian, Lithuanian, Luxembourgish, Macedonian, Malagasy, Malay, Malayalam, Maltese, Maori, Marathi, Mongolian, Myanmar (Burmese),Nepali, Norwegian, Nyanja (Chichewa), Pashto, Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Samoan, Serbian, Sesotho, Shona, Sindhi, Slovak, Slovenian, Somali, Spanish, Sundanese, Swahili, Swedish, Tagalog (Filipino),Tajik, Tamil, Tatar, Telugu, Thai, Turkish, Turkmen, Ukrainian, Urdu, Uyghur/ Uighur, Uzbek, Vietnamese, Welsh, Xhosa, Yiddish, Yoruba, Zulu) ## Key features - Translate words and phrases on any webpage - YouTube dual subtitle player - Learn over 100 languages - Practice vocabulary in context - Listen to native pronunciations ## Recent user reviews (10 of 28) All indexed reviews: https://appshunter.io/ios/app/readlang-watchlang/id1602114377/reviews.md ### 5/5 — Q *2025-11-19* Say me, how change font size in free version or pro version!? ### 4/5 — Good Learning App *2025-07-14, version 2.0.19* Good Learning App, but why these days I don’t see the translate on the youtube? And on iphone, when choosing a word, click on the speaker to pronounce, only when wearing headphones will there be pronunciation, and without using headphones, there is no sound. Hope the author adjusts, thank you very much! ### 4/5 — Good Learning App *2025-06-30* Good Learning App, but why these days I don’t see the translate on the youtube? Vì sao khi xem video không hiện phụ đề được??? ### 5/5 — Good Learning App *2025-06-23* Good Learning App, but why these days I don’t see the translate on the youtube? ### 3/5 — It’s not working perfectly *2025-06-12* Hi. It’s been 3 days since the app is not working well. It’s not showing subtitles at all. Even for the videos that has oficial English subtitles available. 😢 ### 5/5 — Top *2025-05-19* C’est top j’en ai rêvé ReadLang l’a fait ### 1/5 — Very poor translation of Arabic *2025-03-18* Very disappointed the way arabic was translated and the worst thing was they made Arabic left to right whereas it is written right to left ### 5/5 — Amazing app *2025-03-14* I love this app ### 5/5 — One bug *2025-01-13, version 2.0.5* No voice ### 4/5 — good *2025-01-08* I like this app but recently the browser three dots button to access favourites doesn’t work ## Frequently asked questions about ReadLang WatchLang ### What does ReadLang WatchLang do? ReadLang WatchLang helps you learn languages by providing a dual subtitle player for YouTube videos and a translator for any webpage. You can highlight words and phrases to get instant translations, aiding in vocabulary acquisition and comprehension. ### What are the key features of this app? Key features include translating words and phrases on any web page with a single tap, a YouTube video player that displays two subtitles simultaneously, and the ability to practice learned vocabulary in context. It supports over 100 languages. ### Is ReadLang WatchLang free to use? The application is free to use and includes in-app purchases. This means you can access core functionalities without initial cost, with options for additional features or content available for purchase. ### What languages can I learn with this app? You can learn a wide variety of languages, including English, Spanish, German, Korean, Japanese, and over 100 other languages. The app supports a comprehensive list of global languages for diverse learning needs. ### How does this app help with language learning? It facilitates language learning by immersing you in content you enjoy, such as YouTube videos and websites. By providing instant translations and dual subtitles, it helps you understand new vocabulary and grammar in context, making the learning process more engaging and effective. ## Version history (last 5 releases) ### 3.1.0 — 2025-08-08 - fixed bugs ### 2.0.19 — 2025-04-23 - new app open beta ### 2.0.18 — 2025-04-06 - new app coming banner ### 2.0.6 — 2025-02-21 - new app coming soon ### 2.0.5 — 2024-12-20 - fixed bug ## Apps similar to ReadLang WatchLang | App | Rating | Price | Category | | --- | --- | --- | --- | | [Linga: Read & Learn Languages](https://appshunter.io/ios/app/linga-read-and-learn-languages/id1525101819) | 4.9 (177) | Free | Education | | [LingQ \| Learn Languages](https://appshunter.io/ios/app/lingq-learn-languages/id379385811) | 4.7 (10,145) | Free | Education | | [Learn Spanish \| LingQ](https://appshunter.io/ios/app/learn-spanish-lingq/id1218125361) | 4.8 (276) | Free | Education | | [Clozemaster－Vocabulary Builder](https://appshunter.io/ios/app/clozemastervocabulary-builder/id1149199075) | 4.8 (1,974) | Free | Education | | [AnyLang: Read, watch & learn](https://appshunter.io/ios/app/anylang-read-watch-and-learn/id1573114703) | 4.6 (317) | Free | Education | | [SmartBook: Dual Language Books](https://appshunter.io/ios/app/smartbook-dual-language-books/id1278697399) | 4.5 (16) | Free | Education | ## More apps by Nguyen Hong Phuc - [Learn Finnish - Suomen Mestari](https://appshunter.io/ios/app/learn-finnish-suomen-mestari/id6475164141) - [Emo treasure](https://appshunter.io/ios/app/emo-treasure/id6477461989) - [HabitYear - Simple Tracker](https://appshunter.io/ios/app/habityear-simple-tracker/id6480166269) - [Language Reactor ReadLang 1L](https://appshunter.io/ios/app/language-reactor-readlang-1l/id6740740246) - [TTS Reader Read Aloud Book Pdf](https://appshunter.io/ios/app/tts-reader-read-aloud-book-pdf/id6746346171) All apps by Nguyen Hong Phuc: https://appshunter.io/developer/1519084763 ## Related topics [subbylingo](https://appshunter.io/ios/topics/subbylingo) --- *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 2026-09-03.*