# 快音Kuaiyin vs 汉字脑洞大侦探

The clearest difference is review sentiment: 快音Kuaiyin at 92% against 汉字脑洞大侦探's 0%. 快音Kuaiyin also leads on rating (4.7 vs 1.0) and ratings volume (828 vs 1). 汉字脑洞大侦探's advantage is in-app purchases (none vs 10) and iOS requirement (12.2 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 快音Kuaiyin sells 10 in-app purchases, starting at $2.49 per month. 汉字脑洞大侦探 asks for nothing beyond the download.

快音Kuaiyin holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: 快音Kuaiyin has 828 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 92% of 快音Kuaiyin's written reviews are positive against 0% of 汉字脑洞大侦探's.

快音Kuaiyin ships an update weekly, 汉字脑洞大侦探 every 4 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | 快音Kuaiyin | 汉字脑洞大侦探 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (828 ratings)](https://appshunter.io/ios/app/kuaiyin/id1493374755/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id6446232281/reviews) |
| Number of ratings | **828** | 1 |
| Positive reviews | **91.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Freemium | **Ad-supported** |
| Size | 140 MB | 23 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [成都开心音符科技有限公司](https://appshunter.io/developer/1493374754) | [晓文 刘](https://appshunter.io/developer/1525471628) |

## What reviewers say

### 快音Kuaiyin

[App page](https://appshunter.io/ios/app/kuaiyin/id1493374755)

Access a vast library of free music, including popular ringtones and viral hits from short video platforms. Easily extract audio from videos, create custom ringtones, and even record and upload your own original music.

**Highlights:** Free music listening, Extract audio from videos, Create custom ringtones, Record and upload original music, Extensive ringtone categorization, Share ringtones with friends

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP member monthly | $2.49 | per month |
| VIP Membership - Seasonal | $4.49 | per 3 months |
| 快音写歌基础版会员 | $6.99 | per month |
| 快音写歌专业版会员 | $11.99 | per month |
| Member 7 days | $0.99 | one-time |
| 30 days of membership | $2.99 | one-time |
| 580个音符充值 | $6.99 | one-time |
| 90 days members | $8.99 | one-time |
| 680个音符充值 | $9.99 | one-time |
| 2580个音符充值 | $39.99 | one-time |

**What reviewers like**

- 👍 Good music selection
- 🎶 Enjoyable listening experience
- 🔍 Able to find desired songs
- 🌐 Accessible for overseas users

**What reviewers complain about**

- 📢 Too many advertisements
- 🔍 Limited search functionality
- 🔇 Some songs not available
- 🔋 High battery consumption

**Reported bugs**

- Login/sign-in issues
- Frequent app crashes
- Compatibility problems on newer devices

**Requested features**

- More original song versions
- Improved search capabilities
- Reduce advertisement frequency


### 汉字脑洞大侦探

[App page](https://appshunter.io/ios/app/id6446232281)

This game challenges your Chinese character knowledge and logical thinking with various puzzle modes. Test your eyesight and agility by finding hidden words, identifying anachronisms, and guessing idioms. It offers a fun way to engage with language through brain-teasing challenges.

**Highlights:** Find words within words, Identify irrational elements in images, Guess stars and idioms, New idiom challenges, Brain-teasing puzzles

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 快音Kuaiyin free?

快音Kuaiyin is free to download, with in-app purchases available.

### Is 汉字脑洞大侦探 free?

汉字脑洞大侦探 is free to download, with no in-app purchases.

### Which has better reviews, 快音Kuaiyin or 汉字脑洞大侦探?

快音Kuaiyin is rated higher. 快音Kuaiyin averages 4.7 out of 5 from 828 ratings, while 汉字脑洞大侦探 averages 1.0 from 1 ratings.

### Do 快音Kuaiyin or 汉字脑洞大侦探 have ads?

Both 快音Kuaiyin and 汉字脑洞大侦探 show ads.

### Which is updated more often, 快音Kuaiyin or 汉字脑洞大侦探?

快音Kuaiyin ships an update weekly, and 汉字脑洞大侦探 every 4 days. Most recently, 快音Kuaiyin was updated on November 7, 2026 and 汉字脑洞大侦探 on November 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*