嗯背单词 vs Sky Lingo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
嗯背单词
This app offers an efficient and enjoyable way to learn vocabulary using a unique state machine algorithm. It prioritizes simple words and repeats difficult ones, making memorization less painful. Enjoy a minimalist design and flexible learning options.
- State machine algorithm for efficient memorization
- Minimalist Bauhaus-inspired design
- Single-handed operation
- No forced review or word debt
- Vocabulary radio
- Add word notes
- Online dictionary with images and encyclopedic content
- Import custom word lists
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你可以每小时复习超过 2000 个单词！嗯背单词的状态机算法让记忆每个单词的效率提高几十倍，简单的单词优先记忆，困难的单词不断重复，背单词从此不再痛苦 ● 包豪斯式极简设计 - SwiftUI 原生应用，超快，超流畅 - 告别导航栏，在首页上使用所有功能模块 ● 随时随地学 - 单手轻松使用所有功能 - 随时背，随时不背 - 没有单词债和强迫复习 ● 无限循环的状态机算法 - 按照初记 - 复习 - 回顾无限循环重复，前所未有的超高效率 - 觉得记不住？还可以听写默写 ● 更多强力功能 - 单词电台 - 添加单词笔记 - 查询在线词典，图片和百科内容 - 自由编辑同义，反义和相关词，充分利用你的联想能力 - 切换到词典模式，查词自动加入生词本 ● 丰富的词书内容 - 支持英日双语，你懂的~ - 自由导入单词列表，可以识别时态和词性变化 ● 联系我（们) 邮 件：superwhitecosmos@gmail.com ● 服务协议 用户协议: https://github.com/WhiteCosmos/Tougher-App-Support/blob/main/TermsOfService 隐私政策: https://github.com/WhiteCosmos/Tougher-App-Support/blob/main/Privacy%20Policy
Sky Lingo
Practice speaking any language with AI tutors available 24/7. Get instant feedback on pronunciation and grammar, and prepare for exams like IELTS with realistic simulations. Millions are learning faster through personalized conversations.
- 24/7 AI speaking tutors
- Instant pronunciation feedback
- Real-life conversation scenarios
- IELTS test preparation
- Grammar correction
- Voice recognition technology
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Master any language with 24/7 AI tutors. Practice speaking, ace IELTS, and build confidence through real conversations. Join millions learning faster with personalized feedback. 24/7 Speaking Practice & Conversation • One-on-one AI tutors available anytime, anywhere • Instant feedback and pronunciation correction • Practice speaking without scheduling or high costs 200+ Real-Life Scenarios & Situations • Restaurant, travel, job interview simulations • Business meetings, shopping, social conversations • Immersive practice for natural fluency Complete IELTS Test Preparation • Real IELTS questions and speaking simulations • Full practice tests: listening, reading, writing, speaking • Exam strategies and confidence building Grammar Correction & Language Polish • Sentence-by-sentence error analysis • Native-level expression suggestions • Learn correct patterns and improve accuracy Pronunciation Analysis & Perfection • Word-by-word pronunciation feedback • Voice recognition technology • Perfect your accent and speaking clarity Supported Languages: English, Spanish, French, German, Italian, Portuguese, Chinese, Japanese, Korean, Russian, Arabic Why Choose Our App: Affordable alternative to expensive tutors Flexible learning that fits your schedule Proven results for exam success Used by students worldwide Download now and start speaking confidently in days, not years! Subscription details： 1. Your Apple ID account will be charged on the last day of your free trial. 2. Your subscription will automatically renew at the end of each billing period unless it is canceled at least 24 hours before the expiry date. 3. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. 4. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. 4. Privacy policy：https://www.skyai.tech/lingo/privacypolicy.html 5. Terms of use：https://www.skyai.tech/lingo/termsofuse.html
Screenshots
Verdict
嗯背单词 and Sky Lingo both sit at 4.8 stars, but that hides the real split: 96% of Sky Lingo's written reviews are positive against 84% of 嗯背单词's. On price, rating, ratings volume and update cadence 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. 嗯背单词 sells 2 one-off in-app purchases and Sky Lingo sells 4 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for 嗯背单词 against 4.8 for Sky Lingo. Both are backed by a comparable volume of ratings — 87 and 60 respectively. Written reviews are what separate them: 84% of 嗯背单词's written reviews are positive against 96% of Sky Lingo's.
嗯背单词 ships an update every 2 weeks, Sky Lingo every 9 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | 嗯背单词 | Sky Lingo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (87 ratings) | 4.8 (60 ratings) |
| Positive reviews | 84.2% of reviews | 95.9% of reviews — better |
| Number of ratings | 87 — better | 60 |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | 斌斌 沈 | Xiamen Sky AI Tech Co., Ltd. |
Customer experience
嗯背单词
Sky Lingo
In-app purchases
嗯背单词
- 终身会员$4.99
- 终身会员$6.99
Sky Lingo
- Month$14.991 Month
- Quarter$24.993 Months
- Annual$39.991 Year
- 3-year VIPs$89.99
