Comparison

OneBook vs Reloop

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

Head to head
About

OneBook

This app offers a comprehensive language learning experience by integrating audiobooks, podcasts, and videos. It features AI-powered tools for instant text explanations, word lookup, and subtitle generation, supporting over 60 languages.

Highlights
  • AI Instant Tutor for text explanations
  • Automatic subtitle generation for audiobooks
  • Real-person narration for eBooks
  • Interactive PDF audio books
  • Efficient word and sentence lookup
  • Vocabulary level highlighting
  • Multiple reading modes
Features
Read full description

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/

About

Reloop

Transform any audio or video into personalized language learning material using AI transcription. Import content from various platforms, get synchronized bilingual subtitles, and build a smart vocabulary notebook with context.

Highlights
  • AI-powered transcription
  • One-click import from platforms
  • Synchronized bilingual subtitles
  • Variable speed playback
  • Smart vocabulary collection
  • Authentic context learning
Features
Read full description

Reloop - AI Transcription Transform any audio or video content into your personalized language learning material with intelligent AI transcription Core Features AI-Powered Transcription Advanced AI speech recognition technology for accurate audio and video transcription Automatic language detection and multi-language support Local processing ensures privacy protection with professional-grade transcription quality One-Click Import Made Easy Support for YouTube, Apple Podcasts, and other major platforms Smart clipboard detection - simply copy a link for instant import Local audio and video files processed effortlessly Supports direct text-to-audio synthesis Immersive Learning Experience Real-time synchronized bilingual subtitles that flow like lyrics Perfect synchronization between playback progress and subtitles for focused learning Variable speed playback and loop replay to control your learning pace Smart Vocabulary Collection Tap any word to instantly add it to your vocabulary notebook Automatic timestamp recording for each word in the original audio Jump directly to original sentence context during review for deeper memorization Why Choose Reloop? AI-Driven Transcription Technology No need to rely on existing subtitles - AI automatically generates accurate transcriptions for any audio or video. Even podcasts or local recordings without subtitles can be easily converted into learning materials. Authentic Context Learning Stop memorizing word lists out of context. Naturally acquire language through content you're genuinely interested in. Every word comes with complete context and authentic pronunciation examples. Maximize Your Spare Time Listen to podcasts during your commute, tap to collect new words. Review in the evening by jumping directly to original sentences - make every minute count. Interest-Driven Learning Learning materials come from content you truly enjoy, maintaining long-term motivation. From tech podcasts to talk shows, any content can become your learning material. Subscription Plans Basic - $1.99/month Basic import and playback features Synchronized subtitle display Basic vocabulary collection Pro - $5.99/month Unlimited AI transcription Advanced review modes Offline transcription capability Multi-device synchronization Annual Subscription - $32.99/year All Pro features included Exceptional annual value Priority customer support Service Information Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period Manage or cancel subscriptions in iPhone Settings > Apple ID > Subscriptions Any unused portion of a free trial period will be forfeited when a subscription becomes active Subscription charges will be billed to your iTunes account upon purchase confirmation Terms of Service: https://www.reloopai.app/terms-of-service Privacy Policy: https://www.reloopai.app/privacy-policy Download Reloop now and start your AI-powered language learning journey!

Screenshots

OneBook4 screens
Reloop4 screens

Verdict

The call

The clearest difference is ratings volume: OneBook at 64 against Reloop's 2. OneBook also leads on review sentiment (97% vs 84%) and iOS requirement (15.0 vs 17.0). On price, rating, update cadence and ads 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

Both are free to download. OneBook sells 2 in-app purchases, starting at $8.00 per month and Reloop sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for OneBook against 5.0 for Reloop. 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. Written reviews are what separate them: 97% of OneBook's written reviews are positive against 84% of Reloop's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on November 5, 2026.

Scorecard3 real differences · 7 level
OneBook versus Reloop: the parameters behind the verdict, then further details
ParameterOneBookReloop
PriceFreeFree
Rating5.0 (64 ratings)5.0 (2 ratings)
Positive reviews97.3% of reviews — better84.0% of reviews
Number of ratings64 — better2
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size224 MB68 MB
Age rating4+4+
Developer翊 林亲强 吴

Customer experience

OneBook

All ratings64 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews37 reviews
Positive97.3%
Neutral2.7%
Negative0.0%

Reloop

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews25 reviews
Positive84.0%
Neutral12.0%
Negative4.0%

In-app purchases

2 purchases

OneBook

Subscriptions1
  • OneBook Premium Monthly$8.001 Month
One-time1
  • AI Pack 1000$5.00
5 purchases

Reloop

Subscriptions4
  • Reloop Basic Monthly$1.991 Month
  • Reloop Pro Monthly$5.991 Month
  • Reloop Pro Annual$29.991 Year
Show 1 more
  • Reloop Pro+ Annual$49.991 Year
One-time1
  • Lifetime Membership · 30 hrs/month$119.99

Questions

Is OneBook free?
OneBook is free to download, with in-app purchases available.
Is Reloop free?
Reloop is free to download, with in-app purchases available.
Which has better reviews, OneBook or Reloop?
OneBook and Reloop are both rated 5.0 out of 5 on the App Store, from 64 and 2 ratings respectively.
Do OneBook or Reloop have ads?
Neither OneBook nor Reloop shows ads.
Which is updated more often, OneBook or Reloop?
OneBook ships an update weekly, and Reloop weekly. Most recently, OneBook was updated on November 5, 2026 and Reloop on November 5, 2026.

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