Comparison

RepeatDuck vs ReplayWord

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

Head to head
About

RepeatDuck

Master Chinese vocabulary with intelligent flashcards and spaced repetition. Features audio-based memorization, custom card creation, and detailed progress analytics. Learn efficiently with offline access and customizable reading modes.

Highlights
  • Audio-based memorization
  • Custom flashcard creation
  • Spaced repetition system
  • Progress tracking and analytics
  • Offline mode
  • Configurable learning languages
Features
Read full description

RepeatDuck is an innovative Chinese vocabulary learning app that makes word memorization effortless and engaging through intelligent recognition, personalized flashcards, and a unique spaced repetition system. With its distinctive card creation method and scientifically-proven review algorithms, RepeatDuck helps you master Chinese vocabulary efficiently. 【Core Features】 1. Powerful Effortless Learning Method - Audio-based Memorization: Intensive repetition of word pronunciation enhances memory retention and helps master correct pronunciation - Dynamic Word Display: Innovative dynamic word presentation reinforces memory retention 2. Extensive Learning Content - Comprehensive Vocabulary Lists: From elementary to university level, extensive word lists help expand your vocabulary across all levels - Custom Flashcards: Support manual creation and image-based custom flashcards for personalized learning experience 3. Rich Statistical Analysis - Learning Metrics: Comprehensive tracking of vocabulary progress, learning indicators (word count/duration), and achievement milestones - Visual Analytics: Learning activity heatmap, progress trends, and mastery level trends presented through intuitive charts 4. Thoughtful Additional Features - Offline Mode: Core features available offline for learning anywhere, anytime - Configurable Learning Languages: Easy switching between target languages, currently supporting Chinese and English - Customizable Reading Modes: Flexible configuration for playback methods (single/loop/sequential/random) and reading styles (single word/bilingual) 【RepeatDuck Auto-Renewal Subscription Service Details】 1、 Subscription Service: Professional Version Continuous Package Service 2、Subscription Pricing: Monthly subscription at $0.99/month, Annual subscription at $4.99/year 3、Payment: Purchase will be charged to iTunes Account upon confirmation 4、Your iTunes account will be charged 24 hours before the end of the current period, and the subscription will be extended by one subscription period upon successful payment 5、To cancel subscription, please go to iPhone "Settings" --> "iTunes Store & App Store" --> tap "Apple ID", select "View Apple ID", enter "Account Settings" page, tap "Subscriptions", select "Monthly/Annual Subscription" to cancel. If you don't turn off auto-renewal at least 24 hours before the end of the current period, this subscription will automatically renew Privacy Policy: https://mileson.notion.site/Privacy-Policy-RepeatDuck-17ee107ce54f80758c1dd3f5f6272435?pvs=4 Terms of Use: https://mileson.notion.site/Terms-of-Use-RepeatDuck-180e107ce54f806f9fe7f57290dd04ba?pvs=4 If you enjoy "RepeatDuck", please take a moment to write us a positive review. We greatly appreciate it! Email: libingfeng007@gmail.com

About

ReplayWord

Features
Read full description

ReplayWord: Memorize Through Repetition ReplayWord is a powerful memorization tool, with support for over 25 languages and different accents, designed to help you commit any text to memory through the proven technique of spaced repetition and audio learning. Whether you're an actor learning lines, a student studying for exams, a speaker preparing a presentation, or anyone looking to memorize important information or meditate on customizable verses, ReplayWord makes the process efficient and effective. How It Works Simply scan, speak, paste or type the text you want to memorize, select your preferred voice, adjust the repetition settings, and press start. ReplayWord will read your text aloud repeatedly, allowing your brain to naturally absorb the information through multiple exposures. The app's customizable settings let you create the perfect learning environment for your needs. Key Features • Customizable Repetitions: Set exactly how many times you want the text repeated, from a few times to thousands of repetitions for deep memorization. • Natural Voice Synthesis: Choose from a wide variety of high-quality voices with different accents and languages to find the one that works best for you. • Adjustable Speech Settings: Control the speech rate and volume to match your learning preferences. •Scan Any Text in Seconds on iPhone or iPad: Point your camera at any document, book, or handwritten note. Advanced OCR technology instantly converts images to editable text. No more tedious manual typing •Use Audio Files for Playback that repeats on iPhone or iPad: Users can use live recordings or audio files for playback even without transcription. - Export live recordings to files. • Background Music: Select from multiple background tracks to enhance focus and retention. Research shows that certain types of background music can improve memory formation. - Download your own background audio as background music as well. • Pause Control: Set custom pause durations between repetitions to give your brain time to process the information. • Visual Progress Tracking: Watch your progress with a circular timer and progress bar that shows exactly where you are in your memorization session. • Distraction-free Interface: Enjoy a distraction-free environment that helps you focus on learning. • Works Offline: No internet connection required after initial download - perfect for studying anywhere. Perfect For: • Actors and Performers: Memorize scripts, lines, and monologues efficiently. • Students: Learn definitions, formulas, historical dates, or any study material. • Language Learners: Internalize vocabulary, phrases, and pronunciation through repetition. • Public Speakers: Prepare speeches, presentations, and talks without being tied to notes. • Professionals: Memorize important information for meetings, pitches, or interviews. • Anyone: Memorize poems, quotes, religious/faith-based texts, or any content you want to commit to memory. The Science Behind ReplayWord ReplayWord is built on established memory research showing that spaced repetition—reviewing information at increasing intervals—is one of the most effective ways to transfer information from short-term to long-term memory. By combining audio learning with visual reinforcement and customizable repetition patterns, ReplayWord creates the optimal conditions for memorization. Privacy First We respect your privacy. ReplayWord processes all text locally on your device and does not collect or transmit your content to any servers. Your memorization material stays private and secure. Download ReplayWord today and transform how you memorize important information. Turn downtime into productive learning time and watch as your memory retention improves with each session. Remember anything, anytime, anywhere with ReplayWord. This app uses Apple’s Standard License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RepeatDuck4 screens
ReplayWord4 screens

Verdict

The call

The clearest difference is price: RepeatDuck at Free against ReplayWord's $10.00. RepeatDuck also leads on iOS requirement (15.0 vs 17.6). ReplayWord's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases and device support 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

RepeatDuck is free to download; ReplayWord costs $10.00 up front. RepeatDuck sells 3 in-app purchases, starting at $1.99 per month and ReplayWord sells 6 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RepeatDuck ships an update every 2 months, ReplayWord every 3 weeks. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
RepeatDuck versus ReplayWord: the parameters behind the verdict, then further details
ParameterRepeatDuckReplayWord
PriceFree — better$10.00
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size147 MB11 MB
Age rating4+4+
DeveloperChaojifeng (Xiamen) Network Technology Co., Ltd.Lydia Fesseha

In-app purchases

3 purchases

RepeatDuck

Subscriptions2
  • Monthly Pro$1.991 Month
  • Yearly Pro$9.991 Year
One-time1
  • Lifetime Pro$19.99
6 purchases

ReplayWord

Subscriptions6
  • ReplayWord/month$0.491 Month
  • Subscription$1.001 Month
  • ReplayWord4 variants$1.001 Month
Show 3 more
  • ReplayWord$1.491 Month
  • ReplayWord/Year$7.991 Year
  • ReplayWord4 variants$12.001 Year

Questions

Is RepeatDuck free?
RepeatDuck is free to download, with in-app purchases available.
Is ReplayWord free?
ReplayWord costs $10.00, and also offers in-app purchases.
Do RepeatDuck or ReplayWord have ads?
Neither RepeatDuck nor ReplayWord shows ads.
Which is updated more often, RepeatDuck or ReplayWord?
RepeatDuck ships an update every 2 months, and ReplayWord every 3 weeks. Most recently, RepeatDuck was updated on October 21, 2026 and ReplayWord on October 28, 2026.

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