# 开嗓练声 vs K歌伴侣

The clearest difference is in-app purchases: K歌伴侣 at none against 开嗓练声's 6. K歌伴侣 also leads on update cadence (every 9 days vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 开嗓练声 sells 6 in-app purchases, starting at $3.99 per month. K歌伴侣 asks for nothing beyond the download.

开嗓练声 ships an update every 4 weeks, K歌伴侣 every 9 days. The most recent releases landed on November 7, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 开嗓练声 | K歌伴侣 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (167 ratings)](https://appshunter.io/ios/app/id1591389896/reviews)** | — |
| Number of ratings | **167** | — |
| Positive reviews | 59.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 275 MB | 194 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Laiyin Innovation Technology Co., Ltd.](https://appshunter.io/developer/6810118949) | [忠龙 李](https://appshunter.io/developer/6817584995) |

## What reviewers say

### 开嗓练声

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

This app provides tools for vocal training and music theory. It offers scale exercises, real-time pitch detection, vocal lessons, and ear training with intelligent scoring. It also includes a metronome and piano keyboard for practice.

**Highlights:** Scale exercises with custom options, Real-time pitch and accuracy detection, Vocal technique lessons, Sight-singing and ear training, Built-in metronome and piano keyboard

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

**In-app purchases (6)**

| 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 |
| 1个月会员 | $5.99 | one-time |
| 合唱团季会员 | $14.99 | one-time |
| 合唱团-年会员 | $29.99 | one-time |


### K歌伴侣

[App page](https://appshunter.io/ios/app/k/id6817653899)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 开嗓练声 free?

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

### Is K歌伴侣 free?

K歌伴侣 is free to download, with no in-app purchases.

### Do 开嗓练声 or K歌伴侣 have ads?

Neither 开嗓练声 nor K歌伴侣 shows ads.

### Which is updated more often, 开嗓练声 or K歌伴侣?

开嗓练声 ships an update every 4 weeks, and K歌伴侣 every 9 days. Most recently, 开嗓练声 was updated on November 7, 2026 and K歌伴侣 on October 29, 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.*