# 劲椎通S vs 声线

The clearest difference is in-app purchases: 劲椎通S at none against 声线's 10. 声线's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 声线 sells 10 in-app purchases, starting at $0.99 per month. 劲椎通S asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | 劲椎通S | 声线 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (17 ratings)](https://appshunter.io/ios/app/ai/id6749046558/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 64.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Subscription |
| Size | 10 MB | 82 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [伟江 吴](https://appshunter.io/developer/1741007336) | [Guangzhou Lizhi Network Technology Company Limited](https://appshunter.io/developer/1093693052) |

## What reviewers say

### 劲椎通S

[App page](https://appshunter.io/ios/app/s/id6497793533)

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

**In-app purchases:** none


### 声线

[App page](https://appshunter.io/ios/app/ai/id6749046558)

Create unique audio with an AI voice tool. Clone your voice, generate text-to-speech, make AI covers of songs, and add custom voiceovers to videos. Easy to use for everyone.

**Highlights:** AI voice cloning, Text-to-speech conversion, AI song covers, Video voice dubbing, User-friendly interface

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 首月1元包月基础会员 | $0.99 | per month |
| 包月基础会员 | $0.99 | per month |
| 连续包月 | $1.99 | per month |
| 包月高级会员 | $3.99 | per month |
| 包月旗舰会员 | $14.99 | per month |
| 包年基础会员 | $17.99 | per year |
| 包年高级会员 | $19.99 | per year |
| 包年旗舰会员 | $149.99 | per year |
| 200积分 | $0.99 | one-time |
| 1000积分 | $5.99 | one-time |


## Frequently asked questions

### Is 劲椎通S free?

劲椎通S is free to download, with no in-app purchases.

### Is 声线 free?

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

### Do 劲椎通S or 声线 have ads?

Neither 劲椎通S nor 声线 shows ads.

### Which is updated more often, 劲椎通S or 声线?

劲椎通S ships an update every 2 weeks, and 声线 every 2 weeks. Most recently, 劲椎通S was updated on October 30, 2026 and 声线 on October 30, 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.*