# SoundLab vs 开口鸭

The clearest difference is update cadence: 开口鸭 at every 3 days against SoundLab's fortnightly. SoundLab's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SoundLab sells 2 in-app purchases, starting at $2.99 per month and 开口鸭 sells 8 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

SoundLab ships an update fortnightly, 开口鸭 every 3 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SoundLab | 开口鸭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 20 MB | 17 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Zhaoshi Technology Co., Ltd](https://appshunter.io/developer/1803512439) | [厦门云磁数字科技有限公司](https://appshunter.io/developer/1761081852) |

## What reviewers say

### SoundLab

[App page](https://appshunter.io/ios/app/soundlab-audio-data-analyzer/id6751793537)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Annual Membership | $19.99 | per year |


### 开口鸭

[App page](https://appshunter.io/ios/app/id6761402209)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 会员（包月） | $0.99 | per month |
| Max 会员（包月） | $1.99 | per month |
| 30天挑战赛 | $0.99 | one-time |
| Pro 会员（单次包月） | $1.99 | one-time |
| Max 会员（单次包月） | $1.99 | one-time |
| 365天挑战赛 | $9.99 | one-time |
| Pro 年会员 | $14.99 | one-time |
| Max 年会员 | $24.99 | one-time |


## Frequently asked questions

### Is SoundLab free?

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

### Is 开口鸭 free?

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

### Do SoundLab or 开口鸭 have ads?

Neither SoundLab nor 开口鸭 shows ads.

### Which is updated more often, SoundLab or 开口鸭?

SoundLab ships an update fortnightly, and 开口鸭 every 3 days. Most recently, SoundLab was updated on October 24, 2026 and 开口鸭 on October 31, 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.*