# 合唱蛙 vs 开嗓练声

The clearest difference is rating: 开嗓练声 at 4.8 against 合唱蛙's 3.7. 开嗓练声 also leads on review sentiment (60% vs 20%) and ratings volume (166 vs 3). 合唱蛙's advantage is in-app purchases (none vs 5) and iOS requirement (11.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 开嗓练声 sells 5 in-app purchases, starting at $3.99 per month. 合唱蛙 asks for nothing beyond the download.

开嗓练声 holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: 开嗓练声 has 166 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 20% of 合唱蛙's written reviews are positive against 60% of 开嗓练声's.

合唱蛙 ships an update every 3 weeks, 开嗓练声 monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 合唱蛙 | 开嗓练声 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/app/id1558836828/reviews) | **[4.8 (166 ratings)](https://appshunter.io/ios/app/id1591389896/reviews)** |
| Number of ratings | 3 | **166** |
| Positive reviews | 20.0% of reviews | **59.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 283 MB | 259 MB |
| Requires iOS | **11.0** | 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

### 合唱蛙

[App page](https://appshunter.io/ios/app/app/id1558836828)

This app uses AI to help choir members practice and improve their pitch and rhythm. It offers features like AI scoring, adjustable playback speed, and the ability to manage choir groups and assignments for conductors.

**Highlights:** AI pitch and rhythm scoring, Sheet music display (staff & numbered notation), Adjustable playback and singing speed, Choir group management, Assignment mode for conductors, Recording and accompaniment support

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

**In-app purchases:** none


### 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 合唱蛙 free?

合唱蛙 is free to download, with no in-app purchases.

### Is 开嗓练声 free?

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

### Which has better reviews, 合唱蛙 or 开嗓练声?

开嗓练声 is rated higher. 合唱蛙 averages 3.7 out of 5 from 3 ratings, while 开嗓练声 averages 4.8 from 166 ratings.

### Do 合唱蛙 or 开嗓练声 have ads?

Neither 合唱蛙 nor 开嗓练声 shows ads.

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

合唱蛙 ships an update every 3 weeks, and 开嗓练声 monthly. Most recently, 合唱蛙 was updated on October 24, 2026 and 开嗓练声 on October 27, 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.*