OneBook vs SentenWord
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneBook
This app offers a comprehensive language learning experience by integrating audiobooks, podcasts, and videos. It features AI-powered tools for instant text explanations, vocabulary highlighting, and subtitle generation, supporting over 60 languages.
- AI Instant Tutor for text explanations
- Auto-generated synchronized subtitles for audiobooks
- Real-person narration for eBooks
- Interactive PDF audio books
- Efficient word and sentence lookup
- Vocabulary level highlighting
- Multiple reading modes including ADHD Bionic Reading
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OneBook is a multilingual learning hub for shadowing audiobooks, podcasts, and videos—with AI context lookup while you read and listen. Core Features 【Audiobook Deep Learning】 【Exclusive Subtitle Generation】: First to support auto-generating synchronized subtitles for m4b/Audible audiobooks. Millions of Audible titles become readable and learnable. 【Real-Person Narration for eBooks】: Supports epub3 books narrated by real people (not synthetic TTS), enabling synchronized listening and reading. 【Interactive PDF Audio Books】: Tap on text within PDF picture books to play the corresponding audio, creating an interactive read-along experience. 【Intelligent Reading & Lookup】 【Efficient Word & Sentence Lookup】: Tap to look up a word, long-press to look up a sentence. Incorporates a feature similar to Kindle's Word Wise, significantly reducing lookup effort. 【AI Instant Tutor】: Select any text for instant AI explanations on grammar, context, sentence structure, and more—like having a personal teacher on hand. 【Vocabulary Level Highlighting】: Words are automatically color-coded based on difficulty, making key terms stand out at a glance. 【Multi-Mode Immersive Experience】 【Multiple Reading Modes】: Includes ADHD Bionic Reading, Cinematically-Scrolling, Immersive Focus Mode, Background Music Reading, Shadowing Practice, and more to suit different scenarios. 【Whisper-Style Audiobook】: Supports offline listening with optional ambient white noise, crafting a comfortable and focused listening experience. 【All-Platform Resource Integration】 Learn directly from videos and audio on platforms like YouTube, Bilibili, and Apple Podcasts. Supports OPDS catalogs for easy subscription to news, foreign periodicals, and magazines. Import personal resources via WebDAV or cloud storage, with real-time synchronization across multiple devices. 【Multilingual & Customizable】 Supports learning for 60+ global languages, including German, French, Italian, Spanish, and other less-commonly-taught languages. Compatible with importing any MDX dictionary file, allowing you to use your preferred word references. Supports custom AI models to tailor the Q&A experience to your needs. Learning Management & Statistics Pre-study new words before reading, with automatic tracking during your session. Detailed reading statistics and insights to help you track progress and outcomes. Why Choose Us? All in One: A single app integrates audiobooks, reading, video learning, vocabulary management, AI Q&A, and resource syncing. Constantly Evolving: Continuously updated with new features and improvements, with more exciting additions on the way. Welcome to Download and Experience Begin your efficient, immersive, and personalized language learning and reading journey today. Privacy Policy: https://www.onebook2025.top/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SentenWord
Learn vocabulary by memorizing words within real sentences and articles, rather than isolated lists. This tool helps you understand and use words effectively through contextual learning and AI-powered analysis of imported texts.
- Learn words in context
- Use real sentences and articles
- Import custom sentences and articles
- AI-generated translations and analysis
- Supports exam preparation vocabulary
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在真实的句子和文章里记单词,而不是在孤立的词表里死记硬背。 许多英语老师都推崇「句子背单词」:把单词放进语境,记得住、也用得出。SentenWord 把这套方法做成了一个顺手的工具。 【精选例句词书】 · 覆盖考研、四六级、雅思等阶段的真题句子 · 每个单词都在真实句子中出现,搭配、用法一并掌握 【导入句子】 · 可以批量导入你想学习的句子内容 · 提供逼真的语音和句子讲解 【导入文章】 · 粘贴或对课本拍照,一键解析任何你想读的真题或文章 · AI 生成全文翻译与逐句解析,把你的阅读变成词汇课 【订阅说明】 SentenWord Pro 提供连续包月、半年订阅,解锁全部功能、更高的内容创建额度与。订阅将自动续期,可随时在系统设置中管理或取消。 隐私政策: https://starrylingo.com/sentenword/privacy 使用条款 (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: OneBook at 5.0 against SentenWord's 4.5. OneBook also leads on ratings volume (64 vs 2) and iOS requirement (15.0 vs 17.0). SentenWord's advantage is update cadence (every 3 days vs weekly). On price, ads, in-app purchases and monetization model 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. OneBook sells 2 in-app purchases, starting at $8.00 per month and SentenWord sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
OneBook holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: OneBook has 64 ratings behind it against 2, so its average is the more settled of the two.
OneBook ships an update weekly, SentenWord every 3 days. Both last shipped on November 8, 2026.
| Parameter | OneBook | SentenWord |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (64 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 97.3% of reviews | — |
| Number of ratings | 64 — better | 2 |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 229 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | 翊 林 | 成峰 王 |
Customer experience
OneBook
SentenWord
In-app purchases
OneBook
- OneBook Premium Monthly$8.001 Month
- AI Pack 1000$5.00
SentenWord
- SentenWord Pro 会员1个月$2.991 Month
- SentenWord Pro 半年会员$12.996 Months
- 5万字内容创建加量包$0.99
- 20万字内容创建加量包$2.99









