Comparison

ReadLang WatchLang vs DecksMD

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Translate words and phrases on any webpage
  • YouTube dual subtitle player
  • Learn over 100 languages
  • Practice vocabulary in context
  • Listen to native pronunciations
Features
Read 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)

About

DecksMD

Transform your existing markdown notes into flashcards for efficient learning. Automatically generate cards from headings and text, or capture content from other apps. Supports PDF transcription and AI generation for advanced study.

Highlights
  • Markdown to flashcard conversion
  • FSRS-6 scheduling algorithm
  • Capture content from any app
  • PDF transcription and AI generation
  • Plain markdown file storage
  • Anki import
Features
Read full description

DecksMD turns the notes you already have into flashcards — no syntax, no second copy. Point it at your markdown vault and every heading becomes a card: the heading is the front, the text beneath it is the back. Nothing to import, nothing to maintain twice. Edit the note and the card changes with it. STUDY WHAT'S DUE Scheduling by FSRS-6 — the same algorithm Anki uses — so you review what needs reviewing and stop when you're done. Cards, cloze deletions, tables, image occlusion and exams, all from plain markdown. CAPTURE FROM ANYWHERE Share a paragraph from Safari, Mail or any other app and it lands in your vault. The first line becomes the front, the rest becomes the back. Or file it as a plain note and come back to it later. TURN A CHAPTER INTO A DECK Attach a PDF, pick the sections you actually need, and get cards from those pages — including scanned chapters and lecture slides, transcribed first so the maths survives. YOUR FILES STAY YOURS A real markdown editor with properties, tags and a toolbar. Everything lives as plain files in a folder you choose — no database, no lock-in, works offline. Compatible with Obsidian vaults and any folder of markdown. MAKE IT YOURS Fifteen palettes in light and dark — Nord, Gruvbox, Solarized, Catppuccin, E-ink and more. COMING FROM ANKI? Import an .apkg and your decks, cards, media and full review history come with you. Your cards resume on FSRS-6 right where Anki left them. ONE-TIME PURCHASE No subscription for the app itself. AI card generation and PDF transcription are optional and require DecksMD Pro (sold separately at decksmd.app) — or bring your own API key from Anthropic, Google or a local model, free. Everything else — reviewing, scheduling, statistics, capture, import — works without either. SUBSCRIPTION DecksMD Pro — €9.99/month, auto-renewing. Includes AI card generation from your notes and PDFs. Payment is charged to your Apple ID at purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel it in your device settings. Terms of Use: https://decksmd.app/legal/terms Privacy Policy: https://decksmd.app/legal/privacy

Screenshots

ReadLang WatchLang4 screens
DecksMD4 screens

Verdict

The call

The clearest difference is review sentiment: ReadLang WatchLang at 64% against DecksMD's 0%. ReadLang WatchLang also leads on price (Free vs $17.99) and in-app purchases (none vs 1). DecksMD's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 weeks). On monetization model, 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

CostPrice · In-app purchases · Ads · Monetization

ReadLang WatchLang is free to download; DecksMD costs $17.99 up front. DecksMD sells 1 in-app purchase, starting at $8.99 per month. ReadLang WatchLang asks for nothing beyond the download.

UpkeepUpdate frequency

ReadLang WatchLang ships an update every 2 weeks, DecksMD every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
ReadLang WatchLang versus DecksMD: the parameters behind the verdict, then further details
ParameterReadLang WatchLangDecksMD
PriceFree — better$17.99
Rating4.4 (64 ratings) — better—
Positive reviews64.3% of reviews — better0.0% of reviews
Number of ratings64 — better—
Update frequencyEvery 2 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size27 MB12 MB
Age rating17+4+
DeveloperNguyen Hong PhucXherdi Lika

Customer experience

ReadLang WatchLang

All ratings59 ratings
Positive86.4%
Neutral0.0%
Negative13.6%
Written reviews28 reviews
Positive64.3%
Neutral3.6%
Negative32.1%

DecksMD

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

ReadLang WatchLang

No in-app purchases

1 purchases

DecksMD

Subscriptions1
  • DecksMD Pro Monthly$8.991 Month

Questions

Is ReadLang WatchLang free?
ReadLang WatchLang is free to download, with no in-app purchases.
Is DecksMD free?
DecksMD costs $17.99, and also offers in-app purchases.
Do ReadLang WatchLang or DecksMD have ads?
ReadLang WatchLang shows ads; DecksMD does not.
Which is updated more often, ReadLang WatchLang or DecksMD?
ReadLang WatchLang ships an update every 2 weeks, and DecksMD every 2 days. Most recently, ReadLang WatchLang was updated on November 3, 2026 and DecksMD on October 31, 2026.

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