Comparison

不背单词 vs BufferMind

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

Head to head
About

不背单词

Learn English vocabulary through authentic movie and TV show examples. Utilize a vast library of phrases, root words, and affixes for effective memorization. Features include exam-focused content, smart review scheduling, and gamified progress tracking.

Highlights
  • 1.5M+ original sound example sentences
  • 50K+ phrase pairings
  • 2000+ root words and affixes
  • Collins English-Chinese dictionary
  • All-stage vocabulary banks
  • Exam-focused word meanings and phrases
  • Ebbinghaus forgetting curve review
Features
Read full description

【内容,非常全面】 ▪ 150万+原声例句,在英美剧纪录片中学单词 ▪ 5万+词组搭配,海量单词用法,活学活用 ▪ 2000+词根词缀,覆盖近2万词条,用英文的偏旁部首串记单词 ▪ 5000+棵派生树,覆盖2万+词条,速记词族神器 ▪ 正版柯林斯英汉双解词典,用英文理解英文 ▪ 全阶段词库,覆盖小学、初中、高中、大学、留学等全阶段需求 ▪ 200+主流词汇书和英语教材词表,配合纸质书,同步学习 ▪ 近义词、反义词、单词变形,关联记忆更高效 【考试重点,非常突出】 ▪ 考义高亮,加粗显示考过的词义,常考词义重点学 ▪ 考点标记,加粗显示考过的词组,核心考点重点记 ▪ 17万+条历年真题例句,覆盖中考、高考、四六级、考研和专升本 【记忆,非常有效】 ▪ 艾宾浩斯记忆曲线,智能规划复习,高效抗遗忘 ▪ 原声例句,帮你理解单词在真实语境中的用法,理解了才好记 (≧ω≦) ▪ 词根词缀,帮你理解单词的内部结构,理解了才好记 o(^▽^)o ▪ 地道搭配,帮你理解单词的多个词义,理解了才好记 \\(*^▽^*)// ▪ 拼写测试,学完一组拼一拼,会写才肯罢休 【坚持,非常容易】 ▪ 签到送酷币,组队打卡奖励更多 ▶不背成绩单 ▪ 200000+ 五星好评 ▪ App Store 首页推荐 ▪ App Store 背单词推荐应用 ▶不背成长关爱热线 ▪ 不背单词应用内:头像 > 更多设置 > 帮助与反馈 ▪ 微博 / 公众号:不背单词App

About

BufferMind

This app provides real-time lecture transcription and translation for students. It listens, transcribes, and translates lectures live, with an AI assistant to answer questions about the content. Users can save, search, and organize their lecture history.

Highlights
  • Real-time transcription
  • Instant translation
  • AI teaching assistant
  • Searchable lecture history
  • Live activity on Lock Screen
  • Push-to-talk translated conversation
Features
Read full description

BufferMind is a real-time transcription and translation app built for students learning in a language that is not their first. It listens to your lecture, transcribes every word, and translates it as the professor speaks — so you can follow along live, and actually understand it afterwards. REAL-TIME TRANSCRIPTION Fast, accurate speech-to-text across 15+ input languages including English, Chinese, Spanish, Hindi, Korean, Japanese, French and German, with an auto-detect mode for multilingual classrooms. INSTANT TRANSLATION Original and translation side by side as the lecture unfolds — Chinese, English, Hindi, Korean, Japanese and Spanish. You can also have the translation read aloud through your headphones while class is still running. ANDY, YOUR AI TEACHING ASSISTANT Ask Andy anything about a lecture you recorded and get an answer grounded in your own transcript, not the open internet. Snap a photo of a problem on the board and ask about that instead. Andy also catches the moment your name is called, so you do not miss it. A HISTORY YOU CAN ACTUALLY USE Every session keeps its transcript, translation and audio. Tap any word to jump to that exact second of the recording. Search across everything you have ever recorded. Group sessions into folders by course, and upload the syllabus so Andy knows what the class is about. LIVE ACTIVITY An active recording stays visible on the Lock Screen and in the Dynamic Island, so you can confirm it is still running without unlocking your phone. TALKING TO PEOPLE Push-to-talk translated conversation for talking to someone face to face — Chinese, English, Cantonese, Japanese, Korean, Spanish and Hindi. Add friends to share sessions, chat with text, photos, video and voice messages, or start a voice or video call. TRY IT WITHOUT AN ACCOUNT Tap "Continue as Guest" and start recording, transcribing and translating immediately — no email, no signup. Guest sessions are capped at 10 minutes each. Sign in with Apple, Google, LINE or email to lift that cap, sync across your devices, and unlock Andy, friends and chat. PLANS BufferMind is free to start: creating an account gives you a monthly allowance of recording and AI usage at no charge. When you need more, Pro and Max are available as auto-renewing subscriptions. • Pro — US$9.99 per month, or US$19.99 every 3 months • Max — US$19.99 per month, or US$49.99 every 3 months Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of that period. You can manage your subscription and turn off auto-renew in your Apple Account settings after purchase. PRIVACY Audio streams to our speech-to-text provider (Soniox) only while you are recording, and is not retained on their side once the session ends. Your recordings, transcripts and translations live in your own private BufferMind account. Delete any single session — or your entire account and everything in it — at any time from Settings. We do not track you and we do not sell your data. COMMUNITY GUIDELINES Chat and calls only happen between people who have accepted each other as friends, and you can remove a friend at any time. We have zero tolerance for abusive or objectionable content: press and hold any message to report it, and we review every report. Privacy Policy: https://buffermind.com/privacy Terms of Use: https://buffermind.com/terms

Screenshots

不背单词4 screens
BufferMind4 screens

Verdict

The call

The clearest difference is ratings volume: 不背单词 at 3.6K against BufferMind's 9. 不背单词 also leads on iOS requirement (13.0 vs 16.2). BufferMind's advantage is update cadence (every 6 days vs every 3 weeks). On price, rating, review sentiment 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. 不背单词 sells 10 one-off in-app purchases and BufferMind sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BufferMind holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 不背单词 has 3.6K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 94% of 不背单词's written reviews are positive against 100% of BufferMind's.

UpkeepUpdate frequency

不背单词 ships an update every 3 weeks, BufferMind every 6 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
不背单词 versus BufferMind: the parameters behind the verdict, then further details
Parameter不背单词BufferMind
PriceFreeFree
Rating4.8 (3.6K ratings)5.0 (9 ratings) — better
Positive reviews94.1% of reviews100.0% of reviews — better
Number of ratings3.6K — better9
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.2
Further details — not scored
Size168 MB67 MB
Age rating9+4+
DeveloperBeijing Is-Cool Technology Co., LtdZECHANG HE

Customer experience

不背单词

All ratings3,601 ratings
Positive96.9%
Neutral1.4%
Negative1.8%
Written reviews728 reviews
Positive94.1%
Neutral1.6%
Negative4.3%

BufferMind

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

不背单词

Reported bugs

3 issues
  • Login issues for users with non-Chinese phone numbers
  • Compatibility problems on newer iOS/Android devices
  • Unreliable syncing of progress across multiple devices

Requested features

5 requests
  • Ability to import/export custom word lists
  • Integration with other language learning resources
  • More personalized learning algorithms and recommendations
  • Enhanced social features for group/team learning
  • Expanded support for non-English vocabulary

BufferMind

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

不背单词

One-time10
  • 充值4$0.99
  • 充值3$0.99
  • 充值6$0.99
Show 7 more
  • 充值5$0.99
  • 充值9.9$0.99
  • 充值62$8.99
  • 充值116$17.99
  • 充值248$34.99
  • 酷币包 31$39.99
  • 充值298$39.99
5 purchases

BufferMind

Subscriptions4
  • Pro Monthly1 Month trial$9.991 Month
  • Pro Semester$19.993 Months
  • Max Monthly1 Month trial$19.991 Month
Show 1 more
  • Max Semester$44.993 Months
One-time1
  • Recording Top-up (10 hours)$3.99

Questions

Is 不背单词 free?
不背单词 is free to download, with in-app purchases available.
Is BufferMind free?
BufferMind is free to download, with in-app purchases available.
Which has better reviews, 不背单词 or BufferMind?
BufferMind is rated higher. 不背单词 averages 4.8 out of 5 from 3.6K ratings, while BufferMind averages 5.0 from 9 ratings.
Do 不背单词 or BufferMind have ads?
Neither 不背单词 nor BufferMind shows ads.
Which is updated more often, 不背单词 or BufferMind?
不背单词 ships an update every 3 weeks, and BufferMind every 6 days. Most recently, 不背单词 was updated on November 1, 2026 and BufferMind on October 31, 2026.

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