ReadLang WatchLang vs TeaderBook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadLang WatchLang
Learn languages by translating words and phrases on any webpage or YouTube video with dual subtitles. Practice vocabulary in context and improve listening skills with native pronunciations.
- Translate words and phrases on any webpage
- YouTube dual subtitle player
- Learn over 100 languages
- Practice vocabulary in context
- Listen to native pronunciations
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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)
TeaderBook
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TeaderBook is an e-reader for people learning a language through books they choose themselves. Open your own FB2 or EPUB file, tap a sentence to translate it, or double-tap a word you do not know — the translation appears right on the page, without taking you away from the text. A few public-domain classics come with the app, so there is something to read from the very first minute. **YOU CHOOSE HOW IT TRANSLATES** • **Offline words** — instant translation of individual words, with no internet connection and no account. • **Offline translation** — whole sentences translated on your phone itself, still without an internet connection. • **Smart translation** — the most powerful option for difficult sentences; it understands the sentence in context. Models are downloaded only when you agree to it. When there is no connection, the app does not stop working — it falls back to a method that needs none. **WORDS THAT STAY WITH YOU** Every word you look up goes into your own dictionary, along with the sentence you encountered it in and a mark showing whether you know it or are still learning it. A separate screen brings those words back at increasing intervals, helping a word move from “seen it somewhere” to “know it.” The dictionary can be exported and imported as CSV. **BUILT FOR READING, NOT FOR DRILLING** • Real pagination, not endless scrolling — and a sentence split by a page break is still translated as a whole. • A choice of typefaces, including OpenDyslexic. • Light and dark themes, plus a dimmer for reading at night. • See how much time is left in the chapter and the book. • Statistics showing how long you read and how many words you worked through. • Pronunciation, read aloud using your phone’s own voice. **YOUR BOOKS STAY YOURS** TeaderBook is not a bookstore: apart from the few classics it comes with, you bring your own files. Your books, your reading position, your dictionary, and your statistics stay on your phone and are never uploaded. No ads, no analytics, no trackers. **TEADERBOOK PRO** Smart translation and Offline translation are available for free a few times a day, as is one grammar breakdown per day. TeaderBook Pro, an auto-renewing monthly or yearly subscription, removes those daily limits. Reading, Offline words, the dictionary, and reviews stay free — with no account and no internet connection. Privacy Policy: https://teader.app/privacy.html Terms of Use: https://teader.app/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: ReadLang WatchLang at none against TeaderBook's 2. ReadLang WatchLang also leads on device support (3 vs 1). TeaderBook's advantage is ads (none vs shown). On price and iOS requirement 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. TeaderBook sells 2 in-app purchases, starting at $4.99 per month. ReadLang WatchLang asks for nothing beyond the download.
| Parameter | ReadLang WatchLang | TeaderBook |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (59 ratings) — better | — |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 59 — better | — |
| Update frequency | Every 2 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 83 MB |
| Age rating | 17+ | 4+ |
| Developer | Nguyen Hong Phuc | Maksym Hornostaiev |
In-app purchases
ReadLang WatchLang
No in-app purchases
TeaderBook
- TeaderBook Pro Monthly$4.991 Month
- TeaderBook Pro Yearly$44.991 Year
Questions
Is ReadLang WatchLang free?
Is TeaderBook free?
Do ReadLang WatchLang or TeaderBook have ads?
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