# MP3转换器 vs 弹琴吧

The clearest difference is update cadence: 弹琴吧 at every 11 days against MP3转换器's monthly. 弹琴吧 also leads on review sentiment (82% vs 71%). MP3转换器's advantage is iOS requirement (11.0 vs 13.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. MP3转换器 sells 3 in-app purchases, starting at $0.99 per 7 days and 弹琴吧 sells 27 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

MP3转换器 holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 252 and 268 respectively. Written reviews complicate that: 71% of MP3转换器's written reviews are positive against 82% of 弹琴吧's, so the app with the better star average is not the one people write more warmly about.

MP3转换器 ships an update monthly, 弹琴吧 every 11 days. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | MP3转换器 | 弹琴吧 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (252 ratings)](https://appshunter.io/ios/app/mp3/id1374137732/reviews)** | [4.6 (268 ratings)](https://appshunter.io/ios/app/id1403263259/reviews) |
| Number of ratings | 252 | **268** |
| Positive reviews | 71.4% of reviews | **82.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 33 MB | 384 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [彬彬 岳](https://appshunter.io/developer/1267196918) | [Beijing Qule Technology Co., Ltd.](https://appshunter.io/developer/1156018476) |

## What reviewers say

### MP3转换器

[App page](https://appshunter.io/ios/app/mp3/id1374137732)

Easily convert audio files between MP3, WAV, and M4A formats. Extract audio from videos, trim clips, change formats, and share directly to social media. Enjoy an ad-free experience with VIP subscriptions.

**Highlights:** Multiple audio format conversion (MP3, WAV, M4A), Video to audio extraction, Audio trimming, Import from local albums, Social media sharing, Ad-free experience with VIP

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP订阅连续包周 | $0.99 | per 7 days |
| VIP订阅连续包月 | $1.49 | per month |
| VIP订阅连续包年 | $3.49 | per year |


### 弹琴吧

[App page](https://appshunter.io/ios/app/id1403263259)

Access a vast library of sheet music for various instruments and genres. Features intelligent playback, practice tools, and a community for musicians. Learn and play your favorite songs with ease.

**Highlights:** Massive sheet music library, Smart sheet music player, Dynamic key/fret guidance, Intelligent practice modes, AI audio recognition, Teacher courses and community

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

**In-app purchases (27)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8元开通 吉他VIP | $0.99 | per month |
| 一个月卡 | $7.99 | one-time |
| 钢琴SVIP一月 | $9.99 | one-time |
| SVIP 1月卡 | $9.99 | one-time |
| one month  VIP | $14.99 | one-time |
| one month  Lesson VIP | $14.99 | one-time |
| 168弹币 | $24.99 | one-time |
| 一年卡 | $24.99 | one-time |
| SVIP一年卡 | $24.99 | one-time |
| 钢琴SVIP一年 | $24.99 | one-time |
| one year  VIP | $29.99 | one-time |
| VIP五年卡 | $29.99 | one-time |
| SVIP 1年卡活动价 | $29.99 | one-time |
| 五年卡 | $29.99 | one-time |
| 278弹币 | $39.99 | one-time |
| 升级至钢琴SVIP永久 | $39.99 | one-time |
| 钢琴VIP永久卡 | $39.99 | one-time |
| 永久卡 | $39.99 | one-time |
| 钢琴SVIP五年卡 | $39.99 | one-time |
| SVIP 5年卡活动价 | $39.99 | one-time |
| 升级至钢琴SVIP终身 | $39.99 | one-time |
| 升级至SVIP终身活动价2 | $39.99 | one-time |
| 终身卡 | $49.99 | one-time |
| LifeTime VIP | $54.99 | one-time |
| 388弹币 | $59.99 | one-time |
| SVIP终身卡 | $79.99 | one-time |
| SVIP终身卡 | $89.99 | one-time |

**What reviewers like**

- 🎵 Extensive sheet music library with diverse songs
- 👍 User-friendly interface and easy navigation
- 💰 Good value for lifetime VIP membership
- 🎹 Comprehensive piano learning tool with multiple features
- 🔍 Easy to find sheet music for most songs

**What reviewers complain about**

- 💸 Aggressive monetization with multiple subscription tiers
- 🐛 Frequent app crashes and freezing issues
- ⚠️ Performance degradation after updates
- 🔄 Features removed or restricted after updates
- ⏳ Slow loading and buffering problems

**Reported bugs**

- Collected sheet music disappearing after updates
- App crashes when opening certain sheet music
- Screen timeout during sheet music viewing
- Bluetooth connection issues with smart pianos
- PDF export/save functionality not working

**Requested features**

- Adjustable font and note size for better readability
- Unified sheet music size adjustment across all scores
- Support for MusicXML and MIDI file formats
- More free songs and expanded popular music library
- Lyrics integration for songs with vocals


## Frequently asked questions

### Is MP3转换器 free?

MP3转换器 is free to download, with in-app purchases available.

### Is 弹琴吧 free?

弹琴吧 is free to download, with in-app purchases available.

### Which has better reviews, MP3转换器 or 弹琴吧?

MP3转换器 is rated higher. MP3转换器 averages 4.8 out of 5 from 252 ratings, while 弹琴吧 averages 4.6 from 268 ratings.

### Do MP3转换器 or 弹琴吧 have ads?

Neither MP3转换器 nor 弹琴吧 shows ads.

### Which is updated more often, MP3转换器 or 弹琴吧?

MP3转换器 ships an update monthly, and 弹琴吧 every 11 days. Most recently, MP3转换器 was updated on October 20, 2026 and 弹琴吧 on October 26, 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.*