RepeatDuck vs Full Stack Interview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Audio-based memorization
- Custom flashcard creation
- Spaced repetition system
- Progress tracking and analytics
- Offline mode
- Configurable learning languages
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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
Full Stack Interview
Prepare for technical interviews with a comprehensive question bank covering front-end, back-end, and mobile development. Access core knowledge, answering strategies, and practical skills to boost your success rate in recruitment and job-hopping interviews.
- Multi-platform question bank (Java, iOS, Android, Vue, Flutter, mini programs)
- Interview guide with core knowledge and skills
- Classic questions from top companies
- Offline access for practice
- Suitable for front-end, back-end, and mobile developers
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A full-stack interview prep tool built for programmers, covering front-end, back-end and mobile development to help you succeed in campus hiring, social recruitment and job-switch interviews. Core Features • AI Interview Question Bank: High-frequency real questions about AI, algorithms and large language models • Multi-platform Question Library: Exclusive interview questions for Java, iOS, Android, Vue, Flutter & Mini Programs • Professional Interview Guide: Common test points, standard answering frameworks and practical interview skills • Core Knowledge for Top Companies: Key knowledge frequently asked by major tech enterprises • Offline Review Mode: Cache all questions to practice without network anytime Whether you’re a new grad, career changer or experienced developer, you can fill knowledge gaps rapidly, raise your interview success rate and land high-paying offers effortlessly. Full Stack Interview QQ Group: 1030593558
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Verdict
The clearest difference is price: RepeatDuck at Free against Full Stack Interview's $0.90. Full Stack Interview's advantage is iOS requirement (12.0 vs 15.0). On update cadence, 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
RepeatDuck is free to download; Full Stack Interview costs $0.90 up front. RepeatDuck sells 3 in-app purchases, starting at $1.99 per month and Full Stack Interview sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
RepeatDuck ships an update every 2 months, Full Stack Interview every 6 weeks. The most recent releases landed on September 17, 2026 and October 8, 2026 respectively.
| Parameter | RepeatDuck | Full Stack Interview |
|---|---|---|
| Price | Free — better | $0.90 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 147 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Chaojifeng (Xiamen) Network Technology Co., Ltd. | 平 何 |
Customer experience
RepeatDuck
Full Stack Interview
In-app purchases
RepeatDuck
- Monthly Pro$1.991 Month
- Yearly Pro$9.991 Year
- Lifetime Pro$19.99
Full Stack Interview
- 1个月会员$0.29
- 3个月会员$0.59
- 6个月会员$0.89
Show 3 moreShow fewer
- 1年会员$1.49
- 5年会员$5.99
- 永久会员$28.99








