Duoreader vs Lingo7
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Duoreader
Read books and articles in two languages simultaneously, with sentence-by-sentence translations and audio support. Improve language skills naturally while enjoying literature and news. Supports custom imports and AI-powered explanations.
- Sentence-by-sentence bilingual translation
- AI-powered dictionary
- Advanced text-to-speech with multiple voices
- Import custom ePUB and PDF files
- Wide range of classic and modern texts
- Supports multiple languages
Read full descriptionHide full description
Duoreader makes it easy to read bilingual texts by aligning translations sentence-by-sentence. You can enjoy the beauty of the originals while improving your language skills naturally. Read anything you want Free, with no ads. Duoreader translates what you read as you go. Whether the text has a human translation or not, you always read it side by side in two languages. Word-by-word alignment Tap a sentence to line up both versions word by word and see exactly which phrase maps to which. AI dictionary Tap any word for a definition that fits the sentence you are reading. Text-to-speech (TTS) and read aloud Listen with natural voices and adjustable speed, and follow along as the text highlights. 78 classic books, in 11 languages Translations into Chinese, English, French, German, Spanish, Italian, Arabic, Japanese, Russian, Korean and Polish. Austen, Dickens, Orwell, Hemingway and more — read them as they were translated, or let Duoreader translate for you. 1,400+ websites, 24 languages Browse by topic — news, science, tech, health, culture, history, travel, food, sport, finance and more — and read any article in your own language, even where no translation exists yet. Prefer a site of your own? Paste the URL. Import your own books Import your own ePUB and PDF files and read them the same way, with bilingual reading, dictionary and TTS. Library and bookmarks Filter by level and language, and save a bookmark on any paragraph to come back to it later. Your progress and bookmarks sync across devices when you sign in. Duoreader supports many languages including Chinese, English, French, Spanish, Italian, Japanese, Arabic, and Russian, with more to come. Bring your favorite books, read something new every day, and learn languages naturally — all within Duoreader.
Lingo7
This app offers an immersive language learning experience through engaging reading and listening content. It helps users build vocabulary, understand grammar in context, and refine pronunciation with smart tools and a vast library of texts.
- Immersive reading with instant translations
- Integrated audio for pronunciation practice
- Extensive library of books and articles
- Spaced repetition for vocabulary retention
- Personalized word bank creation
- Pronunciation and accent refinement tools
Read full descriptionHide full description
Improve your foreign language easily, enjoyably and effectively! Take your language skills further through immersive reading, sharper listening practice and focused vocabulary work. The app suits all levels, especially if you already know the basics and want to keep advancing. English, German, French, Spanish, Italian, Portuguese, Serbian and Russian, choose your language and keep improving! Read with parallel translation Improve your comprehension by reading texts in your target language with instant translation alongside. The library includes classic literature, summaries of modern books, stories and texts for different difficulty levels. This approach helps you practice daily and expand your vocabulary naturally. Audiobooks in your target language Sharpen your listening skills with quality audiobooks: classics, modern retellings, short stories. You can listen while reading or switch to audio-only mode for full immersion, training your ear for authentic foreign speech. Smart flashcards for vocabulary improvement Expand your active vocabulary with intuitive flashcards and exercises. The app includes collections: 1000 words for steady progress, 3000 words for intermediate level and 5000 words for deeper mastery. These collections help strengthen your foundation step by step. Built-in dictionary Tap any word while reading to see its translation, definition and pronunciation. This keeps your reading smooth and uninterrupted, so you can focus on the content. Designed for steady improvement Whether you're polishing the basics or refining advanced fluency, you can practice reading, listening and vocabulary at your own pace. The app is perfect for travelers, students, professionals, self-improvers and people who've used Duolingo or similar apps. Why users love this app The app offers free features, a large library of parallel books and audiobooks, powerful tools for reading practice and vocabulary improvement, plus a simple and attractive interface. Keep improving your foreign language with an app that makes daily practice interesting, easy and effective! german, deutsch, alemán, allemand, tedesco, alemão, немецкий, немачки, duits, niemiecki, němčina, almanca, tyska, saksa, germană, γερμανικά, 德语, ドイツ語, 독일어, जर्मन, ألمانية, english, englisch, inglés, anglais, inglese, inglês, английский, енглески, engels, angielski, angličtina, İngilizce, engelska, englanti, engleză, αγγλικά, 英语, 英語, 영어, अंग्रेज़ी, إنجليزية, spanish, spanisch, español, espagnol, spagnolo, espanhol, испанский, шпански, spaans, hiszpański, španělština, İspanyolca, spanska, espanja, spaniolă, ισπανικά, 西班牙语, スペイン語, 스페인어, स्पेनिश, إسبانية, french, französisch, francés, français, francese, francês, французский, француски, frans, francuski, francouzština, Fransızca, franska, ranska, franceză, γαλλικά, 法语, フランス語, 프랑스어, फ़्रेंच, فرنسية, italian, italienisch, italiano, italien, итальянский, италијански, italiaans, włoski, italština, İtalyanca, italienska, italia, italiană, ιταλικά, 意大利语, イタリア語, 이탈리아어, इतालवी, إيطالية, portuguese, portugiesisch, portugués, portugais, portoghese, português, португальский, португалски, portugees, portugalski, portugalština, Portekizce, portugisiska, portugali, portugheză, πορτογαλικά, 葡萄牙语, ポルトガル語, 포르투갈어, पुर्तगाली, برتغالية, russian, russisch, ruso, russe, russo, русский, руски, russisch, rosyjski, ruština, Rusça, ryska, venäjä, rusă, ρωσικά, 俄语, ロシア語, 러시아어, रूसी, روسية, serbian, serbisch, serbio, serbe, serbo, sérvio, сербский, српски, servisch, serbski, srbština, Sırpça, serbiska, serbia, sârbă, σερβικά, 塞尔维亚语, セルビア語, 세르비아어, सर्बियाई, صربية Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Lingo7 at 4.8 against Duoreader's 4.1. Lingo7 also leads on review sentiment (100% vs 63%) and update cadence (every 2 days vs every 2 months). Duoreader's advantage is in-app purchases (none vs 2) and ratings volume (20 vs 6). 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. Lingo7 sells 2 in-app purchases, starting at $4.99 per month. Duoreader asks for nothing beyond the download.
Lingo7 holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 20 and 6 respectively. Written reviews point the same way: 63% of Duoreader's written reviews are positive against 100% of Lingo7's.
Duoreader ships an update every 2 months, Lingo7 every 2 days. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.
| Parameter | Duoreader | Lingo7 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (20 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 62.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 20 — better | 6 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 64 MB | 108 MB |
| Age rating | 12+ | 4+ |
| Developer | Xing Chen | SeYu LLC |
Customer experience
Duoreader
Lingo7
In-app purchases
Duoreader
No in-app purchases
Lingo7
- Monthly subscription$4.991 Month
- Yearly subscription$25.001 Year








