RepeatDuck vs FinderKeeper
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
FinderKeeper
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总有些人,英语说得让人羡慕; 总有些场景,让人很想学英语。 FinderKeeper 帮你把短视频、美剧、播客里那些让你羡慕的表达,练成自己说得出、用得上的口语。 【学你每天遇得到的英语】 粘贴一个链接、一段文字,或者直接截图、拍照,AI 帮你挑出里面值得学的句子,把地道用法讲得有趣、讲得明白,变成只属于你的学习素材。 不用再啃通用教材——你感兴趣的内容,就是最好的教材。 【这句英语怎么说?AI 每天帮你挑】 每天打开,AI 已经从你的素材里挑好了今天该练的句子。学习、听力、表达三种类型搭配着来,不用自己想今天练什么,点开就能开始。 【不怕说错,AI 陪你练到会】 不做选择题,不背单词,直接开口练句子。 不怕说错,不怕提问,不怕中英夹杂,什么基础都可以,AI 陪你练到会。 【用你学过的句子,练习口语对话】 一张随手拍的照片、一件想聊的事、最近练过的句子或你添加的素材,都能成为对话的起点。AI 陪你把学过的表达用起来,再通过语音通话,练到脱口而出。 聊完还能一起复盘,看看下次怎么说得更自然。 【积累你的专属口语本】 练过的每一句自动整理进你的口语本,一天练 1 句,一年就是 365 句。 【连续包月会员说明】 1、订阅名称:FinderKeeper 连续包月会员 2、订阅价格:¥39/月 3、付款:用户确认购买并付款后记入iTunes账户 4、续订:苹果iTunes账户会在到期前24小时内扣费,扣费成功后订阅周期顺延1个订阅周期 5、取消续订:如需取消续订,请在当前订阅周期到期前24小时以前,手动在iTunes/Apple ID设置管理中关闭自动续订功能 隐私政策:https://www.finderkeeper.cn/privacy 服务条款(EULA):https://www.finderkeeper.cn/terms
Screenshots
Verdict
The clearest difference is update cadence: FinderKeeper at every 10 days against RepeatDuck's every 2 months. RepeatDuck's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. RepeatDuck sells 3 in-app purchases, starting at $1.99 per month and FinderKeeper sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
RepeatDuck ships an update every 2 months, FinderKeeper every 10 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | RepeatDuck | FinderKeeper |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 147 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Chaojifeng (Xiamen) Network Technology Co., Ltd. | 祥翔 廖 |
In-app purchases
RepeatDuck
- Monthly Pro$1.991 Month
- Yearly Pro$9.991 Year
- Lifetime Pro$19.99
FinderKeeper
- 连续包月会员$5.991 Month
- 轻量补充包$1.99
- 标准补充包$4.99
- 超级补充包$14.99









