ReadLang WatchLang vs ContextCat
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
Read full descriptionHide full description
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)
ContextCat
Read full descriptionHide full description
ContextCat helps you learn a language by reading things you actually want to read. Open a news article, a book from the library, a web page or your own PDF. When a word stops you, tap it. You get a short explanation of what it means in that exact sentence, written in your own language. No switching apps, no guessing which dictionary meaning fits. TAP ANY WORD See the meaning that fits the sentence, the word type, and how the word is built. Select a few words to translate the whole phrase. TODAY'S NEWS Each morning the Today tab has a new edition of real articles: world, science, tech, culture, sport, food and travel. Most stories are in English, and for several languages there is also a section from outlets in that language. Tap a headline and the article opens in the app, with every word one tap away. LISTEN WHILE YOU READ Natural voices read your books, PDFs and texts aloud, sentence by sentence, and highlight where you are. Pause, go back a sentence, or slow it down. ASK ABOUT WHAT YOU READ Not sure what a paragraph means? Ask. Answers come from the text in front of you. You can also ask for a quick quiz to check you understood it. WORDS THAT STAY WITH YOU Words you look up are saved for you. Study cards bring them back right before you would forget them, and you can watch the number of words you know grow. READ YOUR OWN THINGS Open a PDF, add a link to a web article, or paste text. You can also share a link or a PDF to ContextCat from Safari, Files and other apps. Everything you open stays in your library. NEW HERE? A short first read and a quick tour show you how it works. JUST WANT TO READ? Choose reading only if you read in your own language and want help with long or tricky documents. You still get listening and questions about the text, without the study tools. Explanations come in your language, in any of the 39 the app supports. SUBSCRIPTION ContextCat is free to try. The free plan includes a limited number of explanations, imports and questions. Premium lifts these limits. - Choose a monthly or yearly plan. Both renew automatically. - Payment is charged to your Apple Account when you confirm the purchase. - Your plan renews unless you cancel at least 24 hours before the current period ends. - Manage or cancel anytime in your Apple Account settings. Privacy Policy: https://contextcatapp.blogspot.com/2025/06/contextcat-privacy-policy-english.html Terms of Use: https://contextcatapp.blogspot.com/2025/06/terms-and-conditions.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ReadLang WatchLang at none against ContextCat's 3. ContextCat's advantage is update cadence (weekly vs every 2 weeks). On price, ads, device support 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. ContextCat sells 3 in-app purchases, starting at $7.99 per month. ReadLang WatchLang asks for nothing beyond the download.
ReadLang WatchLang ships an update every 2 weeks, ContextCat weekly. Both last shipped on November 12, 2026.
| Parameter | ReadLang WatchLang | ContextCat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (64 ratings) — better | — |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 64 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 77 MB |
| Age rating | 17+ | 4+ |
| Developer | Nguyen Hong Phuc | Caner Gulay |
In-app purchases
ReadLang WatchLang
No in-app purchases
ContextCat
- ContextCat Pro (Monthly)$7.991 Month
- ContextCat Pro (6 Months)$24.996 Months
- ContextCat Pro (Yearly)7 Days trial$49.991 Year
Questions
Is ReadLang WatchLang free?
Is ContextCat free?
Do ReadLang WatchLang or ContextCat have ads?
Which is updated more often, ReadLang WatchLang or ContextCat?
Other comparisons















