# 音壳 vs 开嗓练声

The clearest difference is review sentiment: 音壳 at 96% against 开嗓练声's 59%. 音壳 also leads on rating (5.0 vs 4.8) and iOS requirement (12.0 vs 14.0). 开嗓练声's advantage is ratings volume (164 vs 19). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 音壳 sells 11 one-off in-app purchases and 开嗓练声 sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

音壳 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 开嗓练声 has 164 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 96% of 音壳's written reviews are positive against 59% of 开嗓练声's.

音壳 ships an update fortnightly, 开嗓练声 monthly. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 音壳 | 开嗓练声 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (19 ratings)](https://appshunter.io/ios/app/app/id1209335292/reviews)** | [4.8 (164 ratings)](https://appshunter.io/ios/app/id1591389896/reviews) |
| Number of ratings | 19 | **164** |
| Positive reviews | **96.4% of reviews** | 58.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 179 MB | 258 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [鑫 孟](https://appshunter.io/developer/1264513934) | [Beijing Laiyin Innovation Technology Co., Ltd.](https://appshunter.io/developer/6810118949) |

## What reviewers say

### 音壳

[App page](https://appshunter.io/ios/app/app/id1209335292)

Master music theory, sight-singing, and ear training with comprehensive exercises. This app helps beginners and advanced learners improve their music reading, pitch accuracy, and understanding of intervals, chords, and rhythms. It offers customizable practice and a supportive community for musical growth.

**Highlights:** Music theory lessons and exercises, Sight-singing pitch evaluation, Interval, chord, and scale ear training, Rhythm and melody practice, Customizable practice modes, Pure, realistic instrument sounds, Q&A and community forum

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1金币 | $0.99 | one-time |
| 8乐点 | $0.99 | one-time |
| 1个月 | $0.99 | one-time |
| 18乐点 | $2.99 | one-time |
| 1个月 | $3.99 | one-time |
| 40乐点 | $5.99 | one-time |
| 1个月 | $14.99 | one-time |
| 108乐点 | $15.99 | one-time |
| 3个月音壳VIP会员 | $21.99 | one-time |
| 12个月 | $54.99 | one-time |
| 12个月艺考VIP会员 | $449.99 | one-time |


### 开嗓练声

[App page](https://appshunter.io/ios/app/id1591389896)

This app offers vocal training tools for singers, including scale exercises, real-time pitch detection, and ear training. It provides lessons on breathing, vocalization, and pitch accuracy, along with practice tools like a metronome and piano keyboard.

**Highlights:** Scale exercises with custom options, Real-time pitch detection and accuracy monitoring, Vocal technique lessons and demonstrations, Ear training for pitch recognition, Built-in metronome and piano keyboard, Intelligent scoring for sight-singing practice

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 开嗓练声月会员 | $3.99 | per month |
| 开嗓练声季度会员 | $7.99 | per 3 months |
| 开嗓练声年度会员 | $19.99 | per year |
| 合唱团季会员 | $14.99 | one-time |
| 合唱团-年会员 | $29.99 | one-time |


## Frequently asked questions

### Is 音壳 free?

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

### Is 开嗓练声 free?

开嗓练声 is free to download, with in-app purchases available.

### Which has better reviews, 音壳 or 开嗓练声?

音壳 is rated higher. 音壳 averages 5.0 out of 5 from 19 ratings, while 开嗓练声 averages 4.8 from 164 ratings.

### Do 音壳 or 开嗓练声 have ads?

Neither 音壳 nor 开嗓练声 shows ads.

### Which is updated more often, 音壳 or 开嗓练声?

音壳 ships an update fortnightly, and 开嗓练声 monthly. Most recently, 音壳 was updated on September 27, 2026 and 开嗓练声 on September 28, 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.*